OK here's the final code that worked for me:

Code:

	$range=readexcel2('C:\test.xls',,-1,4,1,1)
	if @error  
	 "error occured: @serror (@error)"  
	else  
	 for $counter=1 to ubound($range)
	 $GroupName = ''+$range[$counter,0]+''
	 $ShareName = ''+$range[$counter,1]+''
	 $SharePath = ''+$range[$counter,2]+''
	 $Comment = ''+$range[$counter,3]+''?
		if fnIngroupAD($GroupName)
		    '' + @ERROR + ' - ' + @SERROR ?
			AddToMyNetworkPlaces($ShareName,$SharePath,$Comment)
		endif
	 next


Thanks to Les, Jochen and Gargoyle for their input!

Sincerely,
Jimmy