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Process.Start Hangs with Service

I am trying to kick of a DOS program from a VB.Net service. The
program works fine when called from a batch file, and from a Windows
form, but it has problems when called from a service. The program runs
successfully but does not give control back to the service.

After the Process.Start statement no code will execute. The program
has exited and is not shown in process monitor. I am running the
service under an admin account.

See my code below.

Thanks for any help!

Dim myProcess As New Process

myProcess.Start Info.FileName = strProcess
myProcess.Start Info.Arguments = strArguments
myProcess.Start Info.CreateNoWi ndow = True
myProcess.Start Info.WorkingDir ectory = strPath
myProcess.Start Info.UseShellEx ecute = False


'Kick off the program
myProcess.Start ()

'No code after here will run!!

' wait until it exits
myProcess.WaitF orExit()

LogToFile("Conv erted File")

Catch ex As Exception

LogToFile(ex.Me ssage & " " & ex.Source)
ErrorHandler(ex .Message & " " & ex.Source)

End Try

Nov 21 '05 #1
2 2476
What code do you have in your batch file? You don't wait for exit when you
exicute it.

You are running your service under admin account, but why not under

The process (console app) executes fine using the process.Start method,
doesn't it?

In your code, you are saying 'WaitForExit' & this is holding up your
application. Comment out that line & try again. Or what you can do is make
sure that the console app doesn't have any Read or ReadLine's at the end so
it does exit. That way, you will pass back function to your service.

Let me know your results
Nov 21 '05 #2

There are in this 2 know problems.
A service is not allowed to show on screen
The user of the service should be authorised to start a proces on a certain

I never tried this, just found this in the newsgroup.

I hope this helps?

Nov 21 '05 #3

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