>G'day Gavin,
>Now I know where the .tdx came from, although I can't see a real reason for deviating from the default of .idx.
>I thought that perhaps there was some significance in the naming of the index file, since the 't$000000' name is not very intuitive, to me, anyway. The '$' isn't seen in file names very often unless it's a special identifier. Thought it might have been a precursor to Hungarian Notation. Looks like this one gets chalked up under the heading of "Programmer Quirks".
>Thanks, mate.
>
One good reason for using .tdx for on the fly indexes is so at cleanup you can delete all the *.tdx files without worrying if it's a real index.