Hi Ken,
USEing EXCLUSIVEly and REINDEXing or INDEX ON x TAG y shouldn't be an issue. I do it on occasion with FPD26 tables used by a FPD26 app.
MODI STRUCTURE is not something I do.

>Another FOXDOS problem. We are performing some maintenance routines with VFP 8. In the course of things we are rebuilding indexes, retructuring tables ,etc. Is it a good idea to do this in VFP for DOS tables?
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>Ken