Does this look right to you?

if ingroup("nw2_AntiV")
if not exist("c:\epoagent\agent.ini")
if exist("c:\sdat4385.txt")
quit 1
endif
copy "t:\AntiV\sdat4385.txt" "c:\"
del "c:\sdat*.exe"
display "t:\AntiV\NW2_AVcopying.txt"
copy "t:\AntiV\sdat4385.xex" "c:\sdat4385.exe"
shell "c:\sdat4385.exe /silent /f"
display "t:\AntiV\NW2_AVcompleted.txt"
endif
endif