I am getting this error when I am adding something to my idl file. 1>midl\oleaut32.dll : error MIDL2020: error generating type library : LayOut failed : Ithis(0x80029C83) If I comment this part out it compiles oK. [propput] IDLAPI This([in] IThis* thisIt); STDMETHOD(put_Board)( IThis* thisIt) { return S_OK; } Any ideas?????? [...] read more