Question

In an impersonation scenario related to Sharepoint I need to execute some code in a separate process (the process will run in the context of a certain user). I do not want to launch a separate application, basically I want to do a ‘run as’ on just a method.

Answer 1

The Process.Start method has an overload to start the process provided you have the appropriate user, password and domain.

What you want to do is create a ProcessStartInfo object and specify the proper UserName and Password when starting the process. So you can do something like this:

Dim psiNewProcess As New ProcessStartInfo('Notepad.exe')  psiNewProcess.UserName = 'MyUserName' psiNewProcess.Password = 'MyPassword'  Process.Start(psiNewProcess) 

Oh, Process is in the System.Diagnostics namespace if it isn’t already imported for your project.

EDIT: Quick sidenote, the password field is actually a SecureString type object, so MSDN suggests filling the value in this way:

Dim instance As ProcessStartInfo Dim value As SecureString  value = instance.Password  instance.Password = value