When you install IE5, an Active Desktop item is added to the Settings menu.

To hide the Active Desktop menu, navigate to:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer

Add a new Value Name of NoSetActiveDesktop.

Microsoft has conflicting statements as to the Data Type, but I would try a type REG_SZ first.

Set the data value to 1 to hide the Active Desktop menu. A data value of 0 will show it.

NOTE: If this doesn't work, after a restart, set the Data Type to a REG_DWORD.

NOTE: A visitor reports that navigating to:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced

and setting the HideIcons value name, a type REG_DWORD, to 0 (False), worked.

See tip 1241 for IE4.01 /SPx.