I believe it is an sql server internal extended procedure used by ODBC. So your client is not using it directly. It, I believe, harks back to the days when you prepare a statement before you execute it.

What do you need to know for?

Simon Sabin

Co-author of SQL Server 2000 XML Distilled

http://www.amazon.co.uk/exec/obidos/ASIN/1904347088