Had that myself,  ended up removing both again, using Impulse.  Than reloading, again using Impulse, problem resolved.

W/R

The Straykat

I have just purchased and installed both myself and got the same issue. Sins worked, but Entrenchment didn't.

After a bit of looking around it appears that it installed Entrenchment to my C:\ root folder?! As such it cant find the fmod.dll which sits in the Sins directory. So I thought I would be clever and do an archive of both and reinstall. Entrenchment seems to have archived fine... Sins on the other hand created a 1KB backup file and then removed the working install. So now I have no Sins install and a kind of pointless Entrenchment archive.

I am busy downloading the full Sins install again. Once that is done I will MANUALLY archive both Sins and Entrenchment myself and then play around. I think the problems started when I purchased both and selected both to download/install at the same time. So Entrenchment didn't know where to put itself and promptly stuck itself in the root folder.

Basically, Impluse is buggy... if you do things in slightly the wrong fashion, things go very wrong very quick. I will let you know what happens after this, but I suspect the others are right. A fresh install AFTER Sins is there and working will probably correct a buggy Entrenchment install.

Good luck

You can fix this without uninstalling, but you will need to edit the registry and copy around some files. If you aren't comfortable with this, then try shiverNZ's method above.

I purchased and installed Sins and the expansion at the same time and I get an error about fmod.dll being missing because Entrenchment was installed in c: root folder.

I copied my "c:\Entrenchment" folder to the sins install folder:

32-bit windows "C:\Program Files\Stardock Games\Sins Of A Solar Empire\" or

for 64bit "C:\Program Files (x86)\Stardock Games\Sins Of A Solar Empire\"

For the rest of the post I will be using the 64-bit path

You also need to copy a bunch of files from "c:\" into "C:\Program Files (x86)\Stardock Games\Sins of a Solar Empire\"

These files are ConvertData_Entrenchment.exe, Entrenchment - ReadMe.txt, Sins of a Solar Empire Entrenchment.exe, sinsentrench_firewallgdf.exe and possibly msdia80.dll. Note: UninstHelper.exe already exists in "C:\Program Files (x86)\Stardock Games\Sins of a Solar Empire\".

Next you need to edit the registry. I use regedit.exe (In Vista Click the windows start button and type regedit and enter).

For saftey you should backup the keys you are modifying (e.g. use menu File -> Export...)

Hit Ctrl+F to bring up the search dialog and search for Entrenchment.

Hit F3 to continue finding until you get to a key which looks like this (Mine is for Vista64):

"HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Sins of a Solar Empire - Entrenchment"

Modify the paths in the fields "DisplayIcon", "InstallLocation" and "UninstallString" from C:\<filename> to "C:\Program Files (x86)\Stardock Games\Sins of a Solar Empire\<filename>"

Also for key "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Stardock\Drengin.net\sinsentrench"

Modify the Path field from "C:\" to "C:\Program Files\Stardock Games\Sins Of A Solar Empire\"

Next run Impluse and launch "Sins Of A Solar Empire - Entrenchment" - it should now run fine.

Lastly, delete the folder "C:\Entrenchment" and any of the entrenchment files in "C:\" that you copied earlier to the Recycle Bin (just in case).