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POStarting a process not working in my windows service
 

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    <p>I am trying to execute an exe file through c#.net using a process. It fails to execute returning the following exception:</p> <blockquote> <p>System.InvalidOperationException: No process is associated with this object. at System.Diagnostics.Process.EnsureState(State state) at System.Diagnostics.Process.EnsureState(State state) at System.Diagnostics.Process.GetProcessHandle(Int32 access, Boolean throwIfExited) at System.Diagnostics.Process.WaitForExit(Int32 milliseconds) at System.Diagnostics.Process.WaitForExit() at VideoHandlingWinService.VideoHandlingService.ConvertVideoToFlv(String SavePath, String WithOutExt, String InputFile, String spath, Int32 VideoQueueId) at VideoHandlingWinService.VideoHandlingService.VideoHandling(String VideoName, String SavePath, String InputFile, String WithOutExt, String spath, Int32 VideoQueueId, String VideoDescription, Int32 RegisteredUserId, Int32 CategoryId, String VideoTitle) at VideoHandlingWinService.VideoHandlingService.StartHandlingVideo() at VideoHandlingWinService.VideoHandlingService.OnStart(String[] args)</p> </blockquote> <p>My code to start the process is as follows:</p> <pre><code>Process proc = new Process(); string spath = AppDomain.CurrentDomain.BaseDirectory.ToString(); try { proc.StartInfo.FileName = spath + "\\ffmpeg\\ffmpeg.exe"; proc.StartInfo.Arguments = FilArgs; proc.StartInfo.UseShellExecute = false; proc.StartInfo.CreateNoWindow = false; proc.StartInfo.RedirectStandardOutput = true; proc.StartInfo.RedirectStandardError = true; proc.Start(); string StdOutVideo = proc.StandardOutput.ReadToEnd(); string StdErrVideo = proc.StandardError.ReadToEnd(); } catch { } finally { proc.WaitForExit(); proc.Close(); } </code></pre> <p>Any one please tell me how to do this within windows service. Also i am <strong>running the windows service as local account</strong> and hope there is no permission issue for the exe.</p>
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      1. USSerkan Hekimoglu
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    1. COYou have an empty catch block. Remove it or add some logging in there so you see what is actually going on.
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      1. USDirk Vollmar
    2. COMaybe it means that your empty catch swallowed an exception and the process was never executed, explaining the error message...
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      1. USwj32
 

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