check this one:
quote:
Disable Internet Explorer Password Caching
To disable the ability of IE 4.0 - IE 6 to cache password credentials, use Regedt32 to navigate to:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings

On the Edit menu, Add Value name DisablePasswordCaching as a REG_DWORD data type. In the DWORD Editor, set the data value to 1.
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