Installing and Updating

How to Update or Install The Killer Control Center

2.5 

Updating or Installing The Killer Control Center

The Killer Control Center installers contain drivers for the Killer Wireless-AC 1525/1535/1435, Killer Wireless-N 1202/1103, Killer E2200, Killer E2400, and Killer E2500. The Killer Control Center can be installed on any system with one, or multiples of these network adapters. It cannot be installed on machines with the E2100, Xeno Pro, 2100, M1, or K1. These are legacy devices that are no longer supported, and no longer receive driver updates. 

Click here to jump to troubleshooting steps.

The first step in updating or installing the Killer Control Center is download the correct installer package. There are currently two different Killer Control Center installers:

Choosing the Correct Installer

Those using Windows 7, Windows 8.1, and any version of Windows 10 prior to 1803 (April 2018 Update) should use this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64

Those using Windows 10 1803 (April 2018 Update) or later should use this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd

If you are using Windows 10, and you are unsure which version you are running, you can find out by clicking Start, then typing winver and pressing Enter. A box will appear, which will give you information about Windows, including the version number. 

For more details on the differences between the two packages, please see this article - https://www.killernetworking.com/driver-downloads/kb/faq/100-which-killer-control-center-should-i-install

Once you know which version to download, and have downloaded it, double-click the installer to install both the latest drivers for your Killer devices, and the latest version of the Killer Control Center. 

If all goes well, you can stop here. 

Errors or Other Issues When Installing

If you encounter any errors or problems when installing, first try uninstalling all versions of the Killer Software that are currently on your machine. We have developed a tool to make this very simple. Please follow the steps below:

  1. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe (please note that this is not the old Killer Remover tool - this is much more comprehensive)
  2. Make sure you have the installer for the Killer Control Center that you will be installing. Return here if you aren't sure. 
  3. Run the Killer Software Uninstaller Tool. There are two buttons - one for scanning, one for uninstalling. You do not have to scan. The scan might not find any software installations, but there may still be services installed on your machine that are preventing the installation of the current suite. Regardless of what the scan says, if you are having issues installing, make sure you click Remove Killer Software. When it is finished, it will say "RESTART REQUIRED"
  4. Restart your machine by clicking Start > Power > Restart
  5. Once your machine has completed restarting, run the installer for the Killer Control Center. 

If you are still unable to install the Killer Control Center, please try using Microsoft's tool for fixing problems that block programs from being installed or removed. You can find our guide for using this tool here - https://www.killernetworking.com/driver-downloads/kb/faq/90-microsoft-tool. This tool is very effective because, if you are still having problems by this point, the issue is very likely caused by files that have been shuffled around during a Windows Update. 

If the Microsoft Tool does not solve the issue, please submit a ticket to our support, along with an install log for us to analyze, by following these steps:

  1. Run the installer for the Killer Control Center one more time, so as to create the most recent possible information in the install log.
  2. After the installer fails, access your TEMP folder by clicking Start, then typing %TEMP%, then pressing Enter.
  3. Arrange the files in that folder by "Date Modified" so that the most recently modified files are at the top.
  4. You will see many files. Find the most recent file that begins with MSI and ends with .LOG. Move or copy that file to a place you will remember.
  5. Click Support > Contact Support at the top of our website, and be sure to click the folder and attach that .LOG file. In your ticket, please also mention any errors that you might have seen when attempting to install the Killer Control Center. 

Which Killer Control Center Should I Install?

 

Which Killer Control Center Should I Install?

Users may notice that we often host more than one version of the Killer Control Center available for download from our website. This article will summarize the difference between the versions available, and hopefully give the user an idea of which installer they should download and use. 

A note on device compatibility  -  All versions of the Killer Control Center support all Killer Wireless adapters, as well as the E2200, E2400, and E2500. The E2100, 2100, K1, M1, and Xeno Pro are legacy devices, and no longer receive driver updates.
A note on the Killer Network Manager - The Killer Network Manager is our deprecated performance suite. It does not contain current drivers. Users are free to use the Killer Network Manager if they like, but, as it is no longer in development, the first step in troubleshooting should be to uninstall the Killer Network Manager and install the Killer Control Center.
A note on finding your Windows version number - You will see Windows version numbers referenced in the following information. You can find your Windows version by clicking Start, then type winver and press Enter. You will see a box with information about your Windows install, including the Version, which is probably 1709 or 1803, as of June 5 2018. 

The current Killer Control Center versions are as follows, as of June 5, 2018:

What is this? This is our previous release, which was well tested and troublefree on Windows builds 1709 (Fall Creator's Update) and 1803 (April 2018 Update). This package contains the latest drivers for all Killer Networking devices, except for the Killer Wireless-AC 1550, as well as the Killer Control Center performance suite. The included driver for the Killer Wireless-AC 1550 is not known to be problematic, but our other package includes a more recent driver for this device.

What's new from the previous release? A new, updated driver for the Killer Wireless-AC 1550. 

Who should use this?  All Killer Network adapter owners who are using Windows 7 and Windows 8.1, as well as those using Windows 10, who have not yet updated to Version 1803 (Windows Spring Update), or who would prefer to not install the Killer Control Center through the Windows Store. 

What if this will not install? Click here for troubleshooting steps and scroll to the bottom to Errors or Other Issues When Installing

Special conditions for this release: Unlike the other package, this release uses a regular installer, and does not go through the Windows Store.

 

 

Killer Software Package - with Wireless xTend for Killer 1550 Version 1.7.1016
Release Notes

What is this? This version is a major update. This is our most recent release, which has been tested primarily with Windows 10 version 1803 (April 2018 Update). This package contains the latest drivers for all Killer Networking devices, as well as the Killer Control Center performance suite. The installer will first install device drivers, and then redirect to the Windows Store to install the Killer Control Center software. Please note that the version number listed here is the version of the installer. The version of the Killer Control Center that the Windows Store installs will be different. 

What's new from the previous release? A new, updated driver for the Killer Wireless-AC 1550, the debut release of Wireless xTend for Killer 1550, and many other minor enhancements that are too numerous to list. Wireless xTend for Killer 1550 allows owners of the Killer 1550 to turn their machines into wireless access points, xTending the range of the currently connected wireless network through their computer. 

Who should use this?  All Killer Networking adapter owners who are using Windows 10 version 1803 (April 2018 Update). Those using the Windows Insider Preview versions of Windows 10 are also encouraged to use this version, and provide us with any feedback, should you encounter any issues.

What if this will not install?  Click here for troubleshooting steps and scroll to the bottom to Errors or Other Issues When Installing. If you are unable to install this version, please try installing version 1.5.1859 above after submitting your install log. It is important that you submit your install log before installing 1.5.1859, or the install log will reflect the results of that install instead of reflecting the results of your attempted install of 1.7.1016. 

Special conditions for this release: This version will install on versions of Windows 10 that are older than version 1803 (April 2018 Update), but many things will not function well. We highly recommend installing this version only on Windows 10 version 1803. 

If you have any questions, please feel free to contact support directly by clicking Contact Support under Support at the top of this webpage. 

 

 

 

 

 

 

Error 1923 Verify That You Have Sufficient Privileges and Error 1939

4.8 

Error 1923 Verify That You Have Sufficient Privileges and Error 1939

Some users may encounter the error Error 1923: Verify that you have sufficient privileges to install system services and/or Error 1939 when they attempt to update or install the Killer Control Center. This is caused by the installer not being able to remove the previous version of the service. This appears to be due to the moving of files by the Spring 2018 Windows Features Update. There were also some updates that were incorrectly pushed through Windows Update that have resulted in the Killer Control Center being left in this state. In order to resolve this issue, you will need to uninstall the old version of the Killer Control Center, remove the service, and then run the installer again. We have developed a new tool, which will quickly and easily remove all old versions of our performance suite, as well as all old versions of our service from your system. 

A few notes about the Killer Software Uninstaller Tool:

  • This is not the Killer Remover tool that you might find elsewhere on the web and in this knowledge base. This is a brand new tool that we have just recently developed due to this issue. The old Killer Remover tool is not capable of resolving this issue, as it only targets pieces of installs that were broken by Windows Feature Updates prior to the 2017 Fall Creator's Update. 
  • This tool does not remove device drivers, other than what would normally be removed when running the uninstaller for the suite that you have currently installed. This tool primarily removes the Killer Performance Suite, and its attachments to Windows Update. 

Here are the steps to correct the Error 1923, Error 1939, or any other issue where Windows Update has put your machine in a state where you cannot install the Killer Control Center:

  1. Click here to download the latest Killer Control Center installer from our website. 
  2. Click here to download the Killer Software Uninstaller Tool (Updated May 24, 2018)
  3. Double-click the Killer Software Uninstaller Tool to run it.
  4. Click the Remove Killer Software button. This process may take some time.
  5. When the tool has finished removing everything, it will prompt you to restart your machine. Restart your machine by clicking Start > Power > Restart.
  6. Double-click the Killer Control Center installer and follow the prompts to install. 

Please note - some machines will stil show pending Windows Updates with "Killer" and/or "Rivet" in them. Now that you have removed the previous install, and installed the website version, these updates now refer to software that is not present on your system. They should either attempt to install, fail, and no longer show as "pending," or simply be removed from the list of pending updates. If these updates cause issues after you have installed the Killer Control Center from our website, please let us know!

If you have any further issues, please feel free to contact support directly by clicking Contact Support under Support at the top of the page!

 

E2100, 2100, Xeno Pro, K1, and M1 (Legacy Devices)

 

The E2100, 2100, and Xeno Pro are legacy devices, and no longer receive updated device drivers. Please contact the manufacturer of your Killer 2100, Killer E2100, or Xeno Pro for the latest drivers. The same driver (either 32bit or 64bit) works for each product. It has been confirmed that the latest drivers for Killer 2100, Killer E2100, or Xeno Pro can be downloaded on VisionTek’s support page at: https://www.visiontek.com/support/download-drivers.html. If you are using Windows 10, and Windows does not automatically install drivers for the device, the Windows 8.1 drivers should work for your application.

There is no Windows 10 driver for the E2100, 2100 and Xeno Pro, and there will be no further driver development.

Support is no longer available for the Killer M1 and Killer K1. 

How to Update or Install The Killer Network Manager

4.0 

Updating or Installing The Killer Network Manager

The Killer Network Manager is our outgoing performance suite. It is no longer being updated, and does not contain the latest Ethernet or Wi-Fi drivers. We encourage all users of the Killer Wireless-AC 1525/1535/1435, Killer Wireless-N 1202/1103, Killer E2200, Killer E2400, and Killer E2500 to upgrade to the Killer Control Center, found here - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64. This includes users whose machines came with the Killer Network Manager preinstalled. There is no need to continue using the Killer Network Manager. 

For a smooth installation, download the latest Killer Control Center installation package, then uninstall all Killer products from your Apps and Features menu, which is accessible by right-clicking Start, then restart your computer, and double-click the new installation package to install the new Killer Control Center.

If you have any further issues installing the Killer Control Center, or uninstalling the Killer Network Manager, please see this troubleshooting article - https://www.killernetworking.com/driver-downloads/kb/faq/6-troubleshooting-killer-ethernet-wireless-drivers-software.

The old Killer Network Manager suite is still available for download here - http://www.killernetworking.com/driver-downloads/item/e2200-e2400-wireless - but will no longer be updated, and may not be fully compatible with future Windows updates, antivirus suites, or other applications that manipulate network data. 

Error 2753: The File 'xtendsoftapservice.exe' is Not Marked for Installation

 

The File 'xtendsoftapservice.exe' is Not Marked for Installation (Error 2753)

This guide also fixes the error "The feature you are trying to use is on a network resource that is unavailable..."

Some users may encounter this, or a similar error, when updating their drivers or Killer Control Center, or when uninstalling the Killer Control Center.

Even if you are in the process of updating the Killer Control Center, the issue is that the installer is unable to find this file in order to uninstall it, which is a necssary step for installing the latest suite.

The problem is that the file is either not present, or is not correctly flagged in the registry. This is a bug that was introduced in a few versions of the suite when it was present on your machine during a major Windows feature update, or an upgrade to Windows 10 from another version.

Note that this guide can also be used to uninstall some older versions of the application, which have become bugged due to Windows Feature Updates, and may or may not appear in the Apps and Features menu. The process is exactly the same. 

This issue can be resolved by following these steps:

  1. Download the latest Killer Control Center and keep it somewhere handy, to install when you're finished uninstalling the old suite - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
  2. Download Microsoft's tool for fixing problems that block programs from being installed or removed - https://support.microsoft.com/en-us/help/17588/fix-problems-that-block-programs-from-being-installed-or-removed 


    microsoft uninstall fixit2

  3. Once you have both of those things downloaded, uninstall all Killer products from your Apps and Features menu, which you can access by right-clicking Start.


    right click start uninstall killer

  4. You may encounter that same error - Error 2753. The File 'xtendsoftapservice.exe' is Not Marked for Installation - and that is fine. When you do, skip that application, and uninstall any other applications from "Killer" including "Killer Drivers."

  5. Now run the tool from Microsoft. 

  6. For the first menu, you will simply click Next


    ms uninstall fixit 1

  7. Then after a moment of "Detecting Problems", it will ask if you are having a problem installing or uninstalling a program. Even if you are trying to update or install the Killer Control Center, the actual problem is happening when the installer attempts to uninstall the old suite, so you will choose Uninstalling


    ms uninstall fixit 2

  8. At the next prompt, the program will ask you to choose from a list of programs. Find the Killer-related program in the list. It may not be the same as the one in this screenshot, but choose whichever Killer suite the program finds, and then click the Next button. 


    ms uninstall fixit 3

  9. The tool will then proceed to erase the parts of the Killer suite that the installer was unable to remove from the registry. If the program is not listed, you have the option of choosing "Not Listed", and the tool may still find the pieces in the registry that need to be removed. However, it is hard to duplicate that particular scenario, so providing a screenshot is not possible, but it is fairly self-explanatory. 
  10. Once the tool has finished doing its work, you will want to restart your machine once more, and then install the latest Killer Control Center, which you downloaded previously.
  11. If you have any further questions, feel free to contact support at the link below! 

Issues When Installing Windows 7 Drivers

5.0 

Users may encounter errors when installing drivers in Windows 7. This can be resolved by installing an update to Windows 7 that enables SHA-2 code signing in Windows 7, allowing the older operating system to use the newer device drivers. If allowed to fully update, Windows Update should install this update for you automatically. However, if you are unable to connect to the Internet, you may need to use a USB thumb drive, or some other media, to install this update on the machine on which you wish to install Windows 7. You can read more, and find the appropriate update for your situation here - https://docs.microsoft.com/en-us/security-updates/SecurityAdvisories/2015/3033929

Windows Server Drivers

 

Windows Server Drivers

From time to time, we receive requests for Windows Server compatible drivers for our network adapters. Although we do not provide package installers for Windows Server editions, our drivers are Windows WHQL certified, and as such will work with recent Windows Server editions, so long as they are installed manually from the Device Manager using our .INF files.

You can download the .INF files from this location - http://www.killernetworking.com/driver-downloads/item/killer-drivers-inf

If you need assistance manually installing the .INF files using Device Manager, you can follow our guide here - http://www.killernetworking.com/driver-downloads/kb/faq/10-installing-drivers-device-manager

If you encounter an error when installing the .INF drivers for a wireless adapter, you may need to enable wireless networking in your Windows Server. This applies to all Windows Server editions, 2008 and beyond. To do this:

  1. Access Powershell from your administrator account
  2. Type Install-WindowsFeature -Name Wireless-Networking and press Enter. You should receive a confirmation that the service is installed, and a warning that the machine needs to be restarted.
  3. Type Restart-Computer to restart.
  4. Once the machine has restarted, access Powershell from your administrator account again. 
  5. Type net start wlansvc to start the wireless networking service.
  6. The .INF drivers should now install normally.

The Killer Control Center is not availalbe on Windows Server editions. 

The Feature You Are Trying To Use Is On A Network Resource...

 

When updating the Killer Control Center, you may encounter the error "The feature you are trying to use is on a network resource that is unavailable..." 

the feature you are trying to use

This issue can be resolved by using Microsoft's tool for fixing problems that block programs from being installed or removed. Although it may seem like the issue is happening when you are installing the Killer Control Center, the problem is actually happening when the installer is attempting to remove pieces of older installs, so you will need to choose Uninstalling when prompted. A detailed guide for using this tool is availabie here - http://www.killernetworking.com/driver-downloads/kb/faq/34-error-2753-xtendsoftapservice. Although the article does not talk about this issue specifically, the guide and fix is exactly the same. 

How Do I Avoid Breaking Antenna Cables When Changing M.2 Adapters?

 

How Do I Avoid Breaking Antenna Cables When Changing M.2 Adapters?

Please note that any time you choose to change your Wi-Fi module, or any of your machine's hardware, you do so at your own risk and liability. 

M.2 WiFi modules and their connectors continue to get smaller as system providers continue to make thinner notebooks. This makes it much more difficult to disconnect the antenna lead from the module by hand when changing M.2 adapters. In order to properly disconnect the antenna from the module, all wireless module makers now recommend using a specially designed tool. For the Killer Wireless AC modules, we recommend using an IPEX MHF4L 90609-0001. This will greatly reduce the chance of damage to the wireless module connector or to the antenna connector.

If you are unable to obtain such a tool, be sure you pull the antenna leads straight up off of the connectors, to avoid breaking the connectors off of the card. Using a jeweler's or eyeglass repair screwdriver to very gently pull upward on the connector from beneath is best. When attaching antenna leads without a tool, try placing the adapter on a flat surface, lining the leads up on the receptacles, and then pressing down firmly, but gently, with a flat object, so that even pressure is applied. You should hear or feel a click when the the connector goes into place. Very little pressure is required so, if you find yourself pushing hard, you may be damaging the antenna connectors!

If you have further questions, please email us at killersupport@rivetnetworks.com.

Installing Bluetooth Drivers From Device Manager

 

In some cases, when there is no driver for your Bluetooth device, the Device Manager may mis-identify the Bluetooth device, or it may not identify it at all. In this case, you will need to install the Bluetooth driver from the Device Manager by following these steps:

  1. Run the installer but don't bother rebooting
  2. Verify that it created a folder called "C:\Program Files (x86)\Bluetooth Suite"
  3. In Device Manager, double-click the Bluetooth device, however it is currently named
  4. Under the Driver tab, click Update Driver
  5. Click Browse My Computer For Driver Software
  6. Click Let me pick from a list of device drivers on my computer
  7. Click Have Disk
  8. Browse to "C:\Program Files (x86)\Bluetooth Suite\driver"
  9. There should be only one option - atheros_bth.inf - click it and click Open
  10. Click Okay
  11. Select Qualcomm Atheros QCA61x4 Bluetooth 4.1 and click Next
  12. Click Yes on the warning popup
  13. Reboot after it finishes the install
  14. After the reboot, check Device Manager to verify that your Bluetooth device is now named Qualcomm Atheros QCA61x4 Bluetooth 4.1 and you should be good to go!

Installing Drivers From .INF Package Through Device Manager

4.3 

Installing Drivers Using Device Manager

If you would like to install the Killer E2200, Killer E2400, Killer Wireless-N, or Killer Wireless-AC drivers without the Killer Performance Suite - you can do so using these steps. Note that this will disable all network prioritization features.

  1. Download the latest .INF package from this location - http://www.killernetworking.com/driver-downloads/category/other-downloads
  2. Extract the contens of the package to a location that you will remember.
  3. If you currently have the performance suite installed, you will want to uninstall it first by right-clicking Start, then clicking Apps and Features. Then uninstall all "Killer" labeled applications in this window, including anything labeled "suite" or "driver," and restart your machine by clicking Start > Power > Restart.
  4. Once your computer is ready, right-click Start, and click Device Manager.
  5. Locate the Killer Network Adapter in your Device Manager. If it has a driver already installed by Windows, it will be located by its name under Network Adapters. If it has no driver installed, it will be named Ethernet Controller or Unknown Device, as in the screenshot below.
  6. Right-click the adapter, and click Update Driver Software... or Update Driver, whichever is available. 
  7. Click Browse my computer for driver software. 



  8. Click Let me pick from a list of available drivers on my computer
  9. Click Have disk
  10. Click Browse
  11. Navigate to the location where you extracted the standalone driver package earlier. 
  12. From there, you will only have one option, which will be a folder called Production. Double-click that folder.
  13. Double-click your operating system.
  14. Double-click your network adapter.
    1. Eth for all Ethernet Adapters
    2. 11AC1525 for the 1525
    3. 11AC1550 for the 1550
    4. 11AC for the 1535/1435
    5. 11N for all Wireless-N adapters
  15. There will be only one file. Double-click it. 
  16. Click OK
  17. Select your exact model from the list and click Next

 

The final screen should show that you have successfully installed the driver. You can now click on Close.

 

Legacy Products And Error 1603 When Installing

 

Error Message 1603 on Installation of Killer Software

If you are running a Killer E2200 Ethernet Adapter, or any Killer Wireless-N adapter, please follow these steps to remedy this problem:

  1. Download the latest Killer Control Center from here - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64 
  2. Uninstall any "Killer Drivers" or "Killer Performance Suite" or any variations in your Apps and Features or Add/Remove Programs menu
  3. Restart your machine using Start > Power > Restart
  4. Run the installer for the latest Killer Control Center.

If you are running a Killer Xeno Pro or Killer 2100/e2100:

First, download and save this cleaner:

For 32 bit Windows
For 64 bit Windows

Then download and save the latest Killer Xeno Pro/2100/e2100 software from: http://www.visiontek.com/support/download-drivers.html

Then, uninstall your current Killer Network Manager software via Control Panel > Programs and Features. Reboot.

Then, run the cleaner. Reboot once more.

Make sure to disable any antivirus or antimalware software, and reinstall the Killer drivers.

 

Using The Microsoft Tool To Fix Killer Control Center Install Issues

5.0 

Using The Microsoft Tool For Fixing Killer Control Center Install Issues

Users may encounter the following errors, potentially among others, when attempting to update or install the Killer Control Center:

  • Error 1714 - the older version cannot be removed. Contact your technical support.
  • The feature you are trying to use is on a network resource that is unavailable...
  • Error 2753 - The File 'xtendsoftapservice.exe' is Not Marked for Installation
  • The installer appears to work, then the progress bar goes backward, and the installer fails
  • The installer prompts for a .MSI file in a strange directory

Even if you are in the process of updating the Killer Control Center, the issue is that the installer is encountering parts of an old Killer Performance Suite, and is unable to uninstall them. 

This issue can be resolved by following these steps:

  1. Download the latest Killer Control Center and keep it somewhere handy, to install when you're finished uninstalling the old suite - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
  2. Download Microsoft's tool for fixing problems that block programs from being installed or removed - https://support.microsoft.com/en-us/help/17588/fix-problems-that-block-programs-from-being-installed-or-removed 


    microsoft uninstall fixit2

  3. Once you have both of those things downloaded, uninstall all Killer products from your Apps and Features menu, which you can access by right-clicking Start.


    right click start uninstall killer

  4. You may encounter that same error - Error 2753. The File 'xtendsoftapservice.exe' is Not Marked for Installation - and that is fine. When you do, skip that application, and uninstall any other applications from "Killer" including "Killer Drivers."

  5. Now run the tool from Microsoft. 

  6. For the first menu, you will simply click Next


    ms uninstall fixit 1

  7. Then after a moment of "Detecting Problems", it will ask if you are having a problem installing or uninstalling a program. Even if you are trying to update or install the Killer Control Center, the actual problem is happening when the installer attempts to uninstall the old suite, so you will choose Uninstalling


    ms uninstall fixit 2

  8. At the next prompt, the program will ask you to choose from a list of programs. Find the Killer-related program in the list. It may not be the same as the one in this screenshot, but choose whichever Killer suite the program finds, and then click the Next button. 


    ms uninstall fixit 3

  9. The tool will then proceed to erase the parts of the Killer suite that the installer was unable to remove from the registry. If the program is not listed, you have the option of choosing "Not Listed", and the tool may still find the pieces in the registry that need to be removed. However, it is hard to duplicate that particular scenario, so providing a screenshot is not possible, but it is fairly self-explanatory. 
  10. Once the tool has finished doing its work, you will want to restart your machine once more, and then install the latest Killer Control Center, which you downloaded previously.
  11. If you have any further questions, feel free to contact support at the link below! 

Have a question about your Killer product that isn't answered in our Knowledge Base?  Contact Us.