>>I work a lot with this kind of code, and I have never seen a cursor created with Select .. Nofilter which is not a .real tmp file. AFAIK all cursors, exepct filtered tables, are real files.
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>It's not always the case. I have seen cursors that existed in memory only w/o physical .Tmp file on a disk. The DBF() function still returns the file name in this case but file itself doesn't exist.

That may be so, but I am willing to bet that Append from DBF('thecursor') still would work. As mentioned earlier, I use this Append from DBF('mycursor') syntax in my webshop all day long, and it has never failed, not even once.