Hello, I have an application here whos a client to multiple RPC servers. Each server implements an RPC IDL interface. When I try to compile my client application with the generated client stubs I keep getting this linker error: HelloClient error LNK2022: metadata operation failed (8013118D) : Inconsistent layout information in duplicated types (_MIDL_PROC_FORMAT_STRING): (0x02000004). HelloClient error LNK2022: metadata operation failed (8013118D) : Inconsistent layout information in duplicated types (_MIDL_PROC_FORMAT_STRING): (0x02000004). All the RPC functions used in my scenario takes void and return void, so its not a problem of me defining datatypes multiple times Any help is appreciated. Thanks, Random Task