Hi Mårten,
I think you can find the info in the help file under:
Chapter 17: Programming for Shared Access.
>Which commands need exclusive access to the database? I thought that adding a table would be a clear canditate for this but when I tried it out adding a table or changeing the structure of a table went just fine as long as the table was opened exclusive.
>
>So I wounder, when do I need exclusive access to a database?
Benn Kjaer
MS Certified Professional - Visual Foxpro
"There is something rotten in the state of Denmark"
"Why make user-friendly programs, when there aren’t any friendly users :o)"