VFP 9 and Windows 7 issues

[Nro]

I have 2 customers who migrate from Win XP to Win 7 (32 and 64). Before the migration, DBF and CDX corruption was very rare. But now, I have a lot of problems with program (a compiled .EXE) crash. It seems that some of the CDX got corrupted after a while.

It append to large tables (100000 and more). If I re-create the indexes, everything goes back to normal.

My question is: do you have issue with Windows 7 or Windows 8 and VFP in a compiled environment.

I’m using VFP 9.0, build 09.00.0000.7423

Thanks
Nro

 

[Mike Lewis]

I wonder if this opportunistic locking rearing its ulgy head. If so, it's not directly related to running VFP under Windows 7, which in general shouldn't cause this problem.

The issue has been discussed several times in this forum, so it would be worth your while to do a quick search. In addition, here are a couple of articles that might be of interest:

http://www.dataaccess.com/whitepapers/opportunlockingreadcaching.html

http://www.hexcentral.com/articles/troubleshoot.htm

Mike


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Mike Lewis (Edinburgh, Scotland)

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[Dan Freeman]

The short answer is no. We have users running everything from Windows 2000 through Windows 8 (and VFP 3 through 9). As long as the file server is stable, the VFP applications are stable. (Well, we have one that suffers index corruption. I blame Cryptor, used in only that one application.)

Of course Windows 7/8 are not SERVER operating systems. Are you trying to share the files from a workstation perhaps?