Hi Desmond, Make sure that on those Win10-boxes the SMB-Caching is switched off. If not, that would lead to index corruption, which in turn crashes the application.
The easiest way to set those settings is by running this MSI package, which just sets three RegistryKeys: https://www.dropbox.com/s/aa9vwwup1u8h2zy/OPLock_Set_SMB2-infocache.msi?dl=0 The benefit of that MSI is, that you can deploy it as a GPO (GroupPolicy), targeted for any Domain-Computer. If you want to set those keys directly, then on every Client-PC (not Servers!) at HKEY_LOCAL_MACHINE\system\CurrentControlSet\Services\LanmanWorkstation\Param eters Set this keys to a value of 0 FileInfoCacheLifetime FileNotFoundCacheLifetime DirectoryCacheLifetime In your App you could query those RegKeys and show a warning if not zero. (You normally can't change them from your app, since they are at machine-level and therefor need Admin-rights to modify) With kind regards from Bavaria Jürgen Wondzinski Visual FoxPro Evangelist Microsoft "Most Valuable Professional" from 1996 to 2009, "Servoy Valued Professional 2011 -----Ursprüngliche Nachricht----- Von: ProFox <[email protected]> Im Auftrag von Desmond Lloyd Gesendet: Donnerstag, 19. September 2019 00:52 An: ProFox Email List <[email protected]> Betreff: VFP9 App: Running on Windows 7 and Windows 10 Have an issue with an application. They are reporting that when running under Windows 10 (Pro) the app is intermittently crashing, while the Windows 7 machines are running just fine. Am supporting another app using both OS's and works fine. Not even sure at what I should look at. Am reviewing the tables for any oddities, Any suggestions/thoughts? TIA, Desmond --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html --- [excessive quoting removed by server] _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: https://mail.leafe.com/mailman/listinfo/profox OT-free version of this list: https://mail.leafe.com/mailman/listinfo/profoxtech Searchable Archive: https://leafe.com/archives This message: https://leafe.com/archives/byMID/[email protected] ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.

