Sophos AV Installation - Uninstall 3rd party av

Hi All,

I use Group Policy for installing Sophos AV by the help of following batch file;

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@ECHO OFF
REM --- Check for an existing installation of Sophos AutoUpdate
if exist "C:\Program Files\Sophos\AutoUpdate\ALsvc.exe" goto _End
REM --- Deploy to Windows 2000/XP/2003
\\<SERVER>\InterChk\ESXP\Setup.exe -updp "\\<SERVER>\InterChk\ESXP" -user "USER" -pwd "PWD" -mng yes
REM --- End of the script
:_End
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It' s ok when no av has already been installed to the same machine. But if NOD32 has been already installed, the batch file does not work.

How can I first remove the 3rd party av, then install the Sophos AV with a batch file?

Thanks.