Change User Credentials on Own Process ?

[Guest]

I have seen examples in .NET 2.0 of calling another process such as this
http://www.theserverside.net/tt/articles/showarticle.tss?id=NewSecurityFeatures
using
System.Diagnostics.ProcessStartInfo pInfo = new
System.Diagnostics.ProcessStartInfo();
SecureString ss = new SecureString();
pInfo.Password = ss;
pInfo.UserName = @"domain\alice";
.... REALLY simple. BUT ... I have a need to change the context of the one I
am running - because application legacy A( VB6) calls newC#Application, I
want to do the change in credentials n the C# executable.

The code I saw someone else show here is HUGE, has API win 32 API calls as
well -There must be a simple elegant solution for the existing process as
there is for another process..... Any suggestions ? Thanks