Sergey.

>I don't see a problem in using either of them. I would stay away from TTOS() UDF or any other in the index keys because cure would be worse than decease.

LOL. That's cute. No offense intended. You may have intended to use "decease" which made me laugh. This "cure" is not worse than dying. :)

I think you meant to write "disease".

However TTOS is not worse than the disease. It is completely valid to extend the language with new functions especially when certain functions can legitimately be considered missing.

I'd only add that since it is a UDF it perhaps should have a different prefix just in case VFP does include a TTOS function in a new version. One could then replace all MYTTOS with TTOS.