[RESOLVED] Runing rar.exe windows server 2008

[Zeokat]

I wrote a little tool to rar files:

ProcessStartInfo procStartInfo = new ProcessStartInfo(rar, "command");
procStartInfo.RedirectStandardOutput = true;
procStartInfo.RedirectStandardError = true;
procStartInfo.UseShellExecute = false;
// Do not create the black window.
procStartInfo.CreateNoWindow = true;
// Now we create a process, assign its ProcessStartInfo and start it
Process proc = new Process();
proc.StartInfo = procStartInfo;
proc.Start();

while (proc.HasExited == false)
{
   proc.WaitForExit();
}

textBox1.AppendText("Done");

It works good if i run into windows XP SP3, but when i try to run it into windows server 2008 (no admin rights) it starts compressing but hangs while compressing (no return any error), if i close the the tool suddenly the rar.exe process works and continue compressing.

At the same time if i run with "procStartInfo.UseShellExecute = true;" it works good and compress good (but i not want the black screen showed).

Any idea about why this happens?

Thanks in advance for your help.