Video tip C#: Ensure only one instance is running

J. Andy Wilson

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5.00/5 (2 votes)

2 Nov 2011CPOL

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I really like this method, very easy to implement and understand. One minor "gotcha" about doing it this way is that it is still possible to run multiple instances under different user accounts simultaneously if the users are not administrators on the PC. If this is a scenario you need to avoid,...

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1. Video tip C#: Ensure only one instance is running

2 Nov 2011impeham

I would use a mutex object - using the process name might cause errors. Try "WaitOne" on the mutex - only the first process will be able to acquire it, and in the case of a failure, just exit.

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2. Video tip C#: Ensure only one instance is running