“operation not supported” when invoking an RPC call on Windows 2008

Asked Sep 21 '11 at 07:25

Active Sep 21 '11 at 07:25

Viewed 699 times

The application uses Microsoft RPC for interprocess communications. The application works flawlessly on Windows Server 2003 (Server WS2003 or WS 2008 --- Client WS2003). But the application fails when the client is on Windows Server 2008.

Here is the flow of client part

RpcStringBindingCompose(.....) RpcBindingFromStringBinding(.....) RpcMgmtIsServerListening(....) //This method returns success even on WS2008

After this whenever i call a method rpcMethod(...) defined in IDL file (code generated using MIDL compiler 6.00.0366), it thorws an exception (Error Code 1764) "Operation is not Supported". The MIDL-generated stub redirects to NdrClientCall2() which throws this exception.

Similar issue reported here: Operation is not supported

edited May 23 '17 at 12:03

Community

asked Sep 21 '11 at 07:25

mistr47

What's the IDL definition of the failing method? – sharptooth Sep 21 '11 at 07:32
void RemoteGetU2UMachines([in,size_is(localSize2)] wchar_t instanceID[], [in] short localSize2, [in] short nMaxMachines, [out,size_is(nMaxMachines)] long Machines[], [out] short *nMachines); – mistr47 Sep 21 '11 at 08:17
http://blogs.msdn.com/b/alejacma/archive/2009/05/27/ndrclientcall2-fails-with-rpc-s-already-listening-when-using-pipes-over-ncalrpc.aspx – Hans Passant Sep 21 '11 at 08:18
@Hans Passant: The OP doesn't seem to have pipes in his method. – sharptooth Sep 21 '11 at 08:19
the error im getting is "RPC_S_CANNOT_SUPPORT" & yes @sharptooth there are no pipes. – mistr47 Sep 21 '11 at 08:21
It doesn't have anything to do with the method, it has everything to do with how RPC connects. – Hans Passant Sep 21 '11 at 08:25
@Hans Passant: ncalrpc is only not supported when a method uses synchronous pipes, otherwise it is still supported. – sharptooth Sep 21 '11 at 08:28

“operation not supported” when invoking an RPC call on Windows 2008

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