Command Line Uninstall AVG

I am rolling out a virus package (via a batch file logon script) and I need to automate the uninstall of AVG Free edition from the computers.  The computers have a mix of version 6 and 7.  Does anyone know a command line to do this completely automatically?  I have this command:

"C:\Program Files\Grisoft\AVG Free\setup.exe" /UNINSTALL

but it prompts you whether you want to uninstall, and a few other questions.  Does anyone have any more information?

Thanks in advance.
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CetusMODConnect With a Mentor Commented:
PAQed with points refunded (250)

Community Support Moderator
Do you have Windows XP?

If so try this...

1) Put in your XP CD. Exit if it autostarts.

2) Go to Start > Run, and type:

cmd <Enter>

3) Then, at the command prompt, type (where D: is your CD-ROM drive letter
and "Windows" is your installation directory):

expand D:\i386\config.nt_ c:\windows\system32\config.nt <Enter>
expand D:\i386\autoexec.nt_ c:\windows\system32\autoexec.nt <Enter>
expand D:\i386\command.co_ c:\windows\system32\ <Enter>
exit <Enter>

If that doesn't work, then
1) Start Notepad.

2) In Notepad, type the following entries:
dos=high, umb

3) On the File menu, click Save As.

4) In the File Name box, type Config.nt, and then click Save. Close the
Config.nt file.

5) On the File menu, click New.

6) In the new blank document, type the following entries:
@echo off
lh %SYSTEMROOT%\system32\mscdexnt.exe
lh %SYSTEMROOT%\system32\redir
lh %SYSTEMROOT%\system32\dosx
SET BLASTER=A220 I5 D1 P330 T3

7) On the File menu, click Save As.

8) In the File Name box, type Autoexec.nt, and then click Save. Close the
Autoexec.nt file.

9) Start Windows Explorer. Locate the Config.nt file, right-click the
Config.nt file, and then click Copy.

10) Right-click the %SYSTEMROOT%\System32 (usually Windows\System32) folder,
and then click Paste.

11) Locate the Autoexec.nt file, right-click the Autoexec.nt file, and then
click Copy.

12) Right-click the %SYSTEMROOT%\System32 folder, and then click Paste.

13) Locate the file, right-click the expanded file,
and then click Copy.

14) Right-click the %SYSTEMROOT%\System32 folder, and then click Paste.

15) Restart your computer.
Maybe C:\Program Files\Grisoft\AVG Free\setup.exe" /UNINSTALL /Y works
C:\Program Files\Grisoft\AVG Free\setup.exe" /UNINSTALL /yes
C:\Program Files\Grisoft\AVG Free\setup.exe" /UNINSTALL \yes

mantech1Author Commented:
I found the answer in some old documentation on the internet.  The /HIDE switch is the one I was looking for.  Thanks anyway for your help.
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