RE: Switching between single- and multiple-instance (WinForms)

[Bill McCarthy]

Hi Ian,

I think I wrote about this many years ago.    Although the VB framework is easy 
to use, it can have some security issues, or at least did in its first 
incarnation as it uses a tempting channel to pass arguements. Usually this 
isn't an issue, but I do seem to recsllsome anti virus product would block that.
In days of old you would create s mutex and probably use a custom window 
message or as I think I did, use named pipes