How do i launch a process with low priority? C#

Posted by acidzombie24 on Stack Overflow See other posts from Stack Overflow or by acidzombie24
Published on 2009-06-18T01:34:37Z Indexed on 2010/04/09 23:13 UTC
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I want to execute a cmd line tool to process data. It does not need to be blocking. I want it to be low priority. So i wrote the below

 Process app = new Process();
 app.StartInfo.FileName = @"bin\convert.exe";
 app.StartInfo.Arguments = TheArgs;
 app.PriorityClass = ProcessPriorityClass.BelowNormal;
 app.Start();

However i get a System.InvalidOperationException with the msg "No process is associated with this object." Why? how do i properly launch this app in low priority?

PS: Without the line app.PriorityClass = ProcessPriorityClass.BelowNormal; the app runs fine.

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