>Okay, it is not a code-access issue. And since other code is executing in the web application, it is not an IIS security issue. It sounds like an NTFS problem.

Ok, good to know.

>Is the DBF located in the same box as IIS? Does the IUSER_* account have NTFS permission to read/write in the DBF's directory and the default TEMP directory? I don't know whether the VFP OLEDB provider runs in a separate thread or not. If it does, what account is it running under, and does that account have rights to the DBF's directory and the default TEMP directory that VFP uses?

Yes, the DBF resides in the same directory as the asmx file. When I look at the security for that directory, the one of the asmx file and the DBF file, I see the Everyone account with all the checkboxes in there. Does that mean that the IUSER account is having all those rights by default?

>I'm sorry that I can't be more helpful. Perhaps someone else has worked through this problem and can be more specific.

Well, you provided some interesting info. Thanks