Windows Vista

Compressed (Zipped) Folder Support - How To Disable
Open the Registry Editor (regedit.exe).

Navigate to HKEY_CLASSES_ROOT\CLSID

Delete this key:

HKEY_CLASSES_ROOT\CLSID\{E88DCCE0-B7B3-11d1-A9F0-00AA0060FA31}

Delete this key:

HKEY_CLASSES_ROOT\CLSID\{0CD7A5C0-9F37-11CE-AE65-08002B2E1262}

Restart Windows to enable the changes.

== User Account Control (UAC) - How To Disable --

Launch MSCONFIG by from the Run menu.

Click on the Tools tab. Scroll down till you find "Disable UAC". Click on that line.

Press the Launch button.

A CMD window will open. When the command is done, you can close the window.

Close MSCONFIG. You need to reboot the computer for changes to apply.

Note that you can re-enable UAC by selecting the "Enable UAC" line and then clicking on the Launch button.