I really dont know but i assume it works like this.
A COM+ application reads a dll file registers the dll with its name and works. but the data in the dll is not a managed code so its a classic DLL and not a .Net dll, but in dotnet the CLR is the base and not windows so i assume that it has nothing to do with your registry. so i dont think COM+ is supported by .NET as such.
Vinay Bhushan.S
Zenith Software Ltd.
http://www28.brinkster.com/developerhome/