You have built OBSP.dll against the debug versions of the C runtime library (it is showing a dependency on MSVCR90D.dll and MSVCP90D.dll). Users without Visual Studio 2008 on their computer will not be have these dll's. Rebuild in "Release" configuration. The other 3 dll's are fine, BTW.
I am trying to get it to work in release build atm. The MFD doesn't show in the menu when built as release, so I think it's gt something to do with not initializing variables.
Thanks for checking the DLLs.