K well that didn't work so well on first test.

 Code:
$AppTracking = WMIProcessList ('appname.exe')
If UBound ($AppTracking) < 1
	Run "C:\appname\app\app.exe $app\app.ini"
	exit
Else
	MessageBox ("$Message","   ***You are not allowed to run more than two App sessions***   ",0,10)
ENDIf


allowed me to launch 3 exes.

TS