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POUsing a C# class library as a COM+ server application
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553273
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0
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CommunityOwnedDate
CreationDate
2009-02-16T13:20:04.330
FavoriteCount
1
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2009-08-22T09:00:01.780
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2009-04-01T12:40:19.053
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Body
I created a .NET class library in C# and exposed it to COM. It works fine as an in-proc COM server. However I want to use it as an out-proc COM server to have it in a separate process. To do so I try to create a COM+ application. I created an empty COM+ application and added the classes implemented in the class library into it. When I call CoCreateInstance() to instantiate a class implemented in the library, the COM+ surrogate process encounters an access violation and terminates (crash dump folows). Are there any special steps needed to be taken to create a class library that can be used as an out-proc COM server under COM+? The COM+ surrogate process crashes with the following crash dump: Exception: C0000005 Address: 0x000C1618 Call Stack: ! + 0xC1618 mscorwks!Ordinal79 + 0xE41C mscorwks!Ordinal79 + 0xE4AD mscorwks!CoInitializeEE + 0x563F mscorwks!CoInitializeEE + 0x5672 mscorwks!CoInitializeEE + 0x57F1 mscorwks!CoInitializeCor + 0x210E mscorwks!CoInitializeCor + 0x48D mscorwks!Ordinal79 + 0x16D2 mscorwks!ReleaseFusionInterfaces + 0x20B28 COMSVCS! + 0xC29A2 COMSVCS! + 0xC2BDA COMSVCS!CoCreateStdTrustable + 0xCB10 ole32!CoMarshalInterface + 0x2642 ole32!CoInstall + 0x673 ole32!CoQueryAuthenticationServices + 0x1F44 ole32!CoQueryAuthenticationServices + 0x2862 ole32!CoWaitForMultipleHandles + 0xC267 ole32!CoQueryClientBlanket + 0x16CE ole32!CoCreateObjectInContext + 0xC8E ole32!CoInstall + 0x87A ole32!CoWaitForMultipleHandles + 0x10479 ole32!CoMarshalInterface + 0x2808 ole32!CoGetTreatAsClass + 0xBE7 ole32!CoGetTreatAsClass + 0xB9E ole32!CoMarshalInterface + 0x28F2 ole32!CoMarshalInterface + 0x2642 COMSVCS!CoCreateStdTrustable + 0x106A4 ole32!CoMarshalInterface + 0x2642 ole32!CoPopServiceDomain + 0x14FE RPCRT4!CheckVerificationTrailer + 0x70 RPCRT4!NdrStubCall2 + 0x215 RPCRT4!CStdStubBuffer_Invoke + 0x82 ole32!StgGetIFillLockBytesOnFile + 0xFC92 ole32!StgGetIFillLockBytesOnFile + 0xFC3C ole32!CoRevokeClassObject + 0xA3E ole32!CoRevokeClassObject + 0x963 ole32!StgGetIFillLockBytesOnFile + 0xF872 ole32!WdtpInterfacePointer_UserMarshal + 0x80E ole32!StgGetIFillLockBytesOnFile + 0xF792 RPCRT4!NdrGetTypeFlags + 0x1C9 RPCRT4!NdrGetTypeFlags + 0x12E RPCRT4!NdrGetTypeFlags + 0x5A RPCRT4!CreateStubFromTypeInfo + 0x2D7 RPCRT4!CreateStubFromTypeInfo + 0x318 RPCRT4!NdrConformantArrayFree + 0x2CB RPCRT4!NdrConformantArrayFree + 0x20F RPCRT4!I_RpcBCacheFree + 0x61C RPCRT4!I_RpcBCacheFree + 0x43E RPCRT4!I_RpcBCacheFree + 0x604 kernel32!GetModuleFileNameA + 0x1B4 
Tags
<c#><.net><interop><com-interop><com+>
Title
Using a C# class library as a COM+ server application
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