>>Turns out I was distributing the VFP9 SP1 runtimes w/ an EXE created w/ SP2. Not recommended. Which explains why i couldnt replicate the problem on a SP2 box here.
>>
>>I found this comment (which described the problem exactly)...
>>
>>

VFP9: Unexpected “File is not open” error reported by INDEX ON command after DELETE TAG ALL for a structural CDX on a View.

>>
>>at http://www.unpack.cn/viewthread.php?tid=18284
>>
>>I swapped out the runtimes for the SP2 versions and the problem went away.
>
>Thanks for following up!
>
>If lurkers would rather not go to Chinese domains due to high levels of malware infestation, here's the official MS VFP9 SP2 bug fix list:
>http://download.microsoft.com/download/e/f/f/efff372d-5f27-414c-ae18-177170bf676d/VFP9SP2_BugFixList.htm

Thanks for posting the MSFT link. Not sure how i arrived at the CN link. I thought it can up first via a "FILE IS NOT OPEN" and "FOXPRO" google search, but i dont see it now. Although the firewall may be filtering CN urls at this locale.