ODBC problems on WinNT and Oracle

I have NT 4.0 / IIS / PHP4 RC1. I use some phplib 7.2 files/functions to connect to an Oracle 8.1.5 via ODBC. After a while with fast and well-working connections, I get the following: Warning: SQL error: [Oracle][ODBC][Ora]ORA-01041: internal error. hostdef extension doesn't exist , SQL state S1000 in SQLExecDirect in db_odbc.inc on line 47 This problem is solved by a restart of the WWW Publishing Service in NT. Does anyone have any idea of what makes this happen ? (I would also like to get some help with including .dll's in my distibutions...) --- Lars Mikkel Aas, Systems Engineer ---- KPNQwest Norway, Sandakerveien 64, Oslo ----- lars.aas@kpnqwest.no +47 22 09 29 64