Hi Pete,

Take from the Help for INDEX in FPD2.6a:

You can create an .IDX index file by including the TO idx file clause. The
index file is given the default extension .IDX, which can be <b>overridden by
explicitly including a different extension or by changing the default index 
extension in the FoxPro configuration file</b>.  Standard MS-DOS rules for 
naming files must be observed when creating index files. 

All 'INDEX ON acct_no TO t$000000.tdx' is doing is creating an IDX type index called 't$000000.tdx' on field 'acct_no' giving the index file an extension of .TDX instead of .IDX.

Hope this helps,
Gavin...

>Hi all,
>I'm working in FPD 2.6a on someone else's code from 1994(!) and bumped into this line of code. I can't seem to locate any Fox info on it.
>
>INDEX ON acct_no TO t$000000.tdx
>
>1. Does anyone know where this line may have been inherited from? I found "My Database" DOS uses .tdx. Is there a better suspect?
>2. If it's not from Fox, did it exist at some former, lower level so that it is recognized by FPD 2.6a? The program does run nicely.
>
>TIA,
>Pete