start process with a windows user *solved*

See more:

C#

ASP.NET

Windows

Hi all,
I want to know ways to start a process using another user without having the password.
The user is authenticated via Windows authentication in asp.net and I get the Identity from him to create WindowsImpersonationContext. I need the Identity to create a certificate, doing this with a process.

WindowsIdentity wi = getIdentity();
WindowsImpersonationContext wic = wi.Impersonate();
System.Diagnostics.Process proc1 = new System.Diagnostics.Process();
try
  {
   proc1.StartInfo.WorkingDirectory = pathDir;
   proc1.StartInfo.FileName = pathexe; 
   proc1.StartInfo.UseShellExecute = false;
   proc1.StartInfo.Arguments = argumentsreq;
   proc1.Start();
   proc1.WaitForExit();
                   
   proc1.StartInfo.Arguments = argumentscert;
   proc1.Start();
   proc1.WaitForExit();
   }
   catch
   {
   }
   finally
   {
   }
   
wic.Undo();

I thougth the new process is run by the impersonated user, but it is not so.
Now I have the problem so start the process with the impersonated user, because I don´t have the password.
I have read something about tokens I could create with the identity, but is that the easiest way to run the process? Is there a better way? If not, how can I run the process with a token?