Hello. I'd like to ask for your advice: I am using a 3rd party dll (source code is not available to me) in my program, which fails to load; the error returned (when loading the dll) is: "The application has failed to start because its side-by-side configuration is incorrect. Please see the application event log for more detail" From SxSTrace, I got this: INFO: Attempt to probe manifest at C:\Users\***\<DLL LOCATION>\Microsoft.VC90.DebugCRT\Microsoft.VC90.DebugCRT.MANIFEST. INFO: Did not find manifest for culture Neutral. INFO: End assembly probing. ERROR: Cannot resolve reference Microsoft.VC90.DebugCRT,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",type="win32",version="9.0.21022.8". ERROR: Activation Context generation failed. I tried installing the VC Redistributable package on my system (Vista Home Premium, 32 bit), but it didn't help. Do you have any idea what to try? Thanks a lot! Melanie