If you are running Internet Explorer versions 4.01 Service Pack 2, 5, or 5.01 for Windows NT 4.0, you can disable password caching by using Regedt32 to navigate to:
On the Edit menu, Add Value name DisablePasswordCaching, as a REG_DWORD data type, and set the data value to 1.
If you also wish to disabled password caching for form input boxes (AKA Autocomplete), navigate to:
On the Edit menu, Add Value name FormSuggest, as a REG_SZ data type, and set the data value to no.
If you receive an access violation, in Msdaipp.dll, when you open a web page as a web folder, delete the DisablePasswordCaching
value name. At a CMD prompt, type net stop "protected storage". IE won't cache passwords if the protected storage
service is not started in Windows NT 4.0.
If this solves your problem, you can configure the service
start up as Manual.