Zander posted this in an older thread I started, might be helpful for you:
The way I do multiple installs is to save a patched 1.04 version of the game.
Then copy that patched version and rename it I.E. (1) " Dangerous Waters RAMOD v1_36 ",
and (2) " Dangerous WatersLWAMI 3_11 ".
After patching the original, save the .REG file from the registry- you will need
a .REG file for each different version of the game. One for R.A., LWAMI, AlfaTau, and Millsab.
Each different version should have a different name and folder
This is my RA 136 REG entry. Notice where the folder names are altered.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Sonalysts Combat Simulations\Dangerous Waters]
"DisplayName"="Dangerous Waters"
"Language"="English"
"CD Drive"="D:\\"
"Install Dir"="C:\\GAMES\\SONALY~1\\DANGER~1"
"Product GUID"="{DCFF5D9C-C618-45C9-A61E-14A6981F28C6}"
"Installed From"="D:\\"
"Region"="NA"
"Folder"="Sonalysts Combat Simulations\\Dangerous Waters"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Sonalysts Combat Simulations\Dangerous Waters\1.0]
"DisplayName"="Dangerous Waters"
"Language"=dword:00000001
"LanguageName"="English"
"rootInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous Waters RAMOD v1_36"
"cdInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous Waters RAMOD v1_36"
"scenarioInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous Waters RAMOD v1_36"
"dbInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous Waters RAMOD v1_36"
"interfaceInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous Waters RAMOD v1_36\\Interfaces"
"graphicsInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous Waters RAMOD v1_36\\Graphics"
"sfxInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous Waters RAMOD v1_36\\Audio\\Sfx\\sfx.agg+"
"musicInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous Waters RAMOD v1_36\\Audio\\Music"
"cinematicInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous Waters RAMOD v1_36\\Cinematic"
"aLetter"="e"
"buildNumber"=dword:0000017a
for LWAMI you need a similar setup.
2) in order to mod the game you have to set up the games-folder name, and APPLY the different reg files
before you "MOD" the game.
In other words copy the patched 1.04 and rename to either LWAMI-11, or RA-136, then modify a .REG file for each version, then run the version of the .REG file for the mod you are about to install or the mod will not install properly.
3) To run the version you want, first run the .REG file to get the correct "PATHs" into the registry, then
start your game.
This is my LWAM-11 REG entry.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Sonalysts Combat Simulations\Dangerous Waters]
"DisplayName"="Dangerous Waters"
"Language"="English"
"CD Drive"="D:\\"
"Install Dir"="C:\\GAMES\\SONALY~1\\DANGER~1"
"Product GUID"="{DCFF5D9C-C618-45C9-A61E-14A6981F28C6}"
"Installed From"="D:\\"
"Region"="NA"
"Folder"="Sonalysts Combat Simulations\\Dangerous Waters"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Sonalysts Combat Simulations\Dangerous Waters\1.0]
"DisplayName"="Dangerous Waters"
"Language"=dword:00000001
"LanguageName"="English"
"rootInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous WatersLWAMI 3_11"
"cdInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous WatersLWAMI 3_11"
"scenarioInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous WatersLWAMI 3_11"
"dbInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous WatersLWAMI 3_11"
"interfaceInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous WatersLWAMI 3_11\\Interfaces"
"graphicsInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous WatersLWAMI 3_11\\Graphics"
"sfxInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous WatersLWAMI 3_11\\Audio\\Sfx\\sfx.agg+"
"musicInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous WatersLWAMI 3_11\\Audio\\Music"
"cinematicInstallPath"="C:\\GAMES\\Sonalysts Combat Simulations\\Dangerous WatersLWAMI 3_11\\Cinematic"
"aLetter"="e"
"buildNumber"=dword:0000017a
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