>>I forgot where I downloaded the IsRunning.prg from; UT or VFUG; which has a reference to an ENUMPROC.dll file.
>>
>>I know there is a sample API function here in UT that checks for an instance of an application. I used the search in UT but can't seem to get my way to the correct file. Does anyone have a link?
>
>As Nadya posted, you can use Ed Rauh's approach with CreateEvent or you can download George Tasker's utility from the Downloads section (http://www.levelextreme.com/wconnect/wc.dll?UniversalThread~2,54,Forum=5,28,471) or you can read his article in FPA from November 1998 (it used to be available on-line but not anymore).
>
Larry,

I've been mulling over the idea the writing up a paper on the various methods, along with the Pros and Cons of each, of creating a single instance application. Off the top of my head, I can think of at least 5 ways to do so.

What do you think of the idea?