[comp.windows.ms.programmer] Previous instance question

<F0O@psuvm.psu.edu> (05/30/91)

HI!

   I'm new to windows programming, and have noticed in Petzold's book
that in all the programs I've seen he always checks to see if a previous
instance of the same program is running.  In TPW, I ran a program a
couple of times without checking for any previous instances, and it work
ok.  Is there any good reason to have this code in my programs?

                                                       Thanks!

                                                              [Tim]