>I have an old PHD index file, but I can't seem to update it. The libary is loaded when ever the program is in use, but the index needs to be changed prior to running the program. How is the .PHD file created?

I would start with the PHDBase documentation. It is really pretty good and shows a lot of examples of creating PHD indexes, ect...

To ensure that a PHD index is updated, make sure you SET LIBRARY TO phdbase.v50.
Then open the DBF that has an associated PHD. Any updates to the DBF will automatically update the PHD index.

Same is true for creating PHD indexes. First SET LIBRARY TO phdbase.v50. Then open the DBF and issue the =phd("Index ") command.

The PHDBase docs will show some good examples of this.

Jerryt