Maps an IID to a CLSID in 32-bit proxy DLLs.
HKEY_LOCAL_MACHINE\SOFTWARE\Classes
\Interface
\ProxyStubClsid32 = <CLSID>
This is a required entry since the IID-to-CLSID mapping may be different for 16- and 32-bit interfaces. The IID-to-CLSID mapping depends on the way the interface proxies are packaged into a set of proxy DLLs.
If you add interfaces, you must use this entry to register them (32-bit systems)so that OLE can find the appropriate remoting code to establish interprocess communication.