@echo off

If   "%OS%"   ==   "Windows_NT"   goto   skip

If   NOT "%WINBOOTDIR%"   ==   " "   goto   Win95

echo   Anti virus software is running by using Win3x syntax

net   use   drive_letter\<updateserver>\anti virus software$

drive_letter:anti_virus_software.exe

net   use   drive_letter:   /d

goto   skip

:Win95

REM   Remark

REM   Run anti virus software by using Win95 syntax

REM  

echo   Running Win95 syntax

\\Server_Name\$_Shared_Directory\anti_virus_software.exe

:skip

echo   Anti virus software updated.