Hey. I decided to finally bring my version of TWS and C++ API up to date today and am running into a error I cant seem to fix. When I compile my app it compiles and links correctly, but before it runs it gets an Application Error and doesnt start, this is before it gets to the first line of the app. It outputs LDR: LdrpWalkImportDescriptor() failed to probe C:\WINDOWS\system32\TwsSocketClient.dll for its manifest, ntstatus 0xc0150002 Iv tried both the latest version and the beta API and have the same problem. Iv also looked through the IB message boards and have found no mention of ntstatus 0xc0150002 or manifest files for the dlls. is the TwsSocketClient.dll supposed to come with a manifest file? Thanks.