Select Run from the Start Menu:
Type or Paste: regsvr32 /u zipfldr.dll at the prompt and click OK.
and
Type or Paste: regsvr32 /u cabview.dll at the prompt and click OK.
The change will take effect immediately, but you may have to restart Windows
for all traces of the built-in ZIP support to disappear.
If, at any time, you wish to re-enable Windows XP's built-in ZIP support:
Select Run from the Start Menu:
Type or Paste: regsvr32 cabview.dll at the prompt and click Ok.
and
Type or Paste: regsvr32 zipfldr.dll at the prompt and click Ok.
The change will take effect immediately, but you may have to restart Windows
for all features of the built-in ZIP support to be available.
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Hope this helps. Let us know.
Wes
MS-MVP Windows Shell/User
In