>>Look in the Win95 CD-Rom, there is a policy tool for that kind of tings.
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>We looked in that tool and this does nothing. Have you tried it?
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>It seems the only way is to go in the registry and do that manually. However, the documentation for that part of the registry it difficult to find.

I found a lot of information on the Policy Editor and registry for Win 95 and NT in the book on the Registry from Macmillan Publishing. It is found on the MCP.COM website free digital bookshelf, and has a lot of valuable information on tweaking security in Windows, and solving many of those annoying quirks that happen when the registry gets damaged!