Hi,
It looks like you are using an AddIn that is getting an error when GP is launched now that SP4 and WS FP1 is installed.
I would recommend trying to move all of the files in the GP AddIn folder to a temporary folder and then try launching GP (so that the AddIns folder is empty). Or at least remove all files other than the files named "Microsoft.Dynamics.GP.......dll", which are standard MS AddIn files.
If GP launches okay, try moving the files back to the AddIn directory one by one to see which ones work and which ones fail.
Is there any file in the AddIns directory that looks anything like "AWRMRegistration.dll" or is similar in name?
Let me know if that test works and if you see any files like "AWRM".
Thanks,
Steve Endow
Dynamics GP Certified Trainer
Dynamics GP Certified Professional