Always Check the NOTAM section prior to performing ANY updates to your DCS World install.


17/0815 - REVERTING to DCS World v1.5.6 Update 4

### Reversion Instructions ###

1) Launch ModMan, and if prompted, select “DCS World” (look for the Su-25T banner)

2) UNINSTALL the following MODs:

  • “Black Knights Squadron Files v1.57”
  • “Silence ATC v2.0”


3) Delete the “..\Saved Games\DCS\fxo” folder

4) Copy the latest version of the “DCS Updater Utility.exe” from our Dropbox into the root folder of your DCS World install

5) Run the “DCS Updater Utility.exe” and perform the following steps.  Refer to the image as needed:

  1. On the right, under “Release Build”, Browse to locate where you have DCS World installed, click OK, then click the “Verify DCS Installs” button.
  2. Next, under “Select Build to Manage”, make sure “Release Build” is displayed (see image).
  3. Click on the “Show/Hide Advanced Update Options Panel” button
  4. At the bottom, check the “Release” box and enter the version into the field.  
  5. Click the “UPDATE to a user specified version” button to begin reverting to 1.5.6 Update 4.

6) Once the updater has installed the older version of the sim, confirm the version is correct and acknowledge the Success prompt.

7) DOWNLOAD the following Mods from the Files section and save them to your “addons_DCS World” folder

  • “”
  • “”


8) DELETE the following Mod files from your “addons_DCS World” folder

  • “”


9) Launch ModMan and ONLY INSTALL the following mods listed below. Don’t worry that some other Mods are still showing as RED or YELLOW, you’ll fix that in the next step.  Exit ModMan.

  • “Black Knights Squadron Files v1.56b”
  • “English Cockpit Su-25T v3.2”
  • “Silence ATC v2.0”


10) Run “Restore-My-Mods.cmd” from the root of your DCS World folder. This will automatically restore your remaining mods.

11) You will be prompted to update DCS World to the latest version next time you launch the sim, so remember to answer “NO” to the update prompt each time you fly.

If you encounter any issues, please contact the CO or XO immediately.

16/1030 - DCS Simple Radio Standalone Install

### Update Instructions ###

1) Make sure DCS Simple Radio Standalone (SRS) is NOT running at the time of update.

2) Run the .NET 4.62 Web Installer…  Located in “Dropbox\BlackKnights\Voice Comms”.  The installer supports all versions of Windows, and will automatically install the correct version.  You should still run this even if you already have .NET 4.62 installed.

3) From the same Dropbox location, locate the subfolder with the latest version of SRS and INSTALL by running the “Installer.exe”. 

4) Confirm the install locations are correct then Click “Install / Update DCS-SRS”,  and acknowledge the “Success” pop-up

5) Launch the “SR-ClientRadio”,  and set your Microphone Boost to -90% (minus 90) and Speaker Boost to 126%.  Use the cursor keys on your keyboard for more precise control of the sliders in tens. Select your correct Microphone and Speakers hardware from the drop downs.

6) Test using “Preview Audio” and adjust as required.

7) Add the “Black Knights” SRS server to your favorites.

8) Confirm your controls are mapped properly

9) Under “Settings” tab, confirm the following settings match the screenshot below


New for this release is an optional SRS In-Game OVERLAY using the native DCS GUI. This benefits VR users and those who run DCS in full screen mode, as you can now see the currently set radio frequencies and your active radio from within the sim.

The In-Game Overlay has 3 states, Hidden, Small & Full that you can toggle by pressing “Left Control + Left Shift + Esc”.

The Full state has a title bar that you can click and drag the window around with. The window position will be saved for when DCS is next opened.

Exciting, huh? There’s a huge “HOWEVER” though…


Pressing “L Ctrl + L” while the In-Game OVERLAY is displayed will result in SEVERE FPS LAG. Pressing “L Ctrl + L Shift + L” resolves the lag problem.

As this key combination IS mapped in some DCS modules, pilots choosing to use the new In-Game OVERLAY must be aware of this major bug and how to resolve it. Steps should be taken by pilots to prevent generating the “L Ctrl + L” key presses in their profiles.

As this bug ONLY appears when the In-Game OVERLAY is ACTIVE, pilots that choose NOT to use the In-Game OVERLAY should experience no issues. You may continue to use the default SRS Overlay in a separate window.

Pilots that want to take the extra step and REMOVE the In-Game OVERLAY from SRS entirely, can just delete the following files: