Hi, I want to create a set of unit tests for a library I have written on top of the Vista P2P apis. I want to use Impersonation in my tests to create identities for various users on my workstation. Unfortunately, when calling PeerIdentityCreate from an impersonated context, I receive the following error:

The system cannot find the file specified. (Exception from HRESULT 0x80070002)

(Code is .NET based, I am using Marshal.ThrowExceptionforHR on the HRESULT returned by PeerIdentityCreate)

The impersonation works fine (I am not loading the user profile currently), PeerIdentityCreate works fine when I am not impersonating. The User I am impersonating has the same set of rights as my development user (non admin), I have logged the user on before (windows already created a user profile for him).

I am wondering whether I have to load the userprofile when impersonating? If so, how do I do that? (LoadUserProfile requires some privileges and the calling user to be an admin)? When I log on the user I am impersonating under using Fast User switching parallel to my session, the tests work fine (I don't like this solution).

Any suggestions? What set of preconditions does PeerIdentityCreate require?

Thanks, Daniel