>We have one system that seems to be prone to the Database Container and tables getting corrupted whenever the user's PC locks up. Indexes get lost, and some fields have their data type and length changed.
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>Is there a tool in Visual FoxPro to keep this from happening, or to help diagnose problems with the DBC. Or is there a recovery mechanism of some kind?
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>Any help would be greatly appreciated.

Short of Stonefield, you can try making the DBC and associated files (DCT & DCX) Readonly, if possible. That will solve part of the problem.