Fatal NI connect error 12560, connecting to:  (LOCAL=NO)

VERSION INFORMATION:

TNS for 64-bit Windows: Version 11.2.0.1.0 - Production

Oracle Bequeath NT Protocol Adapter for 64-bit Windows: Version 11.2.0.1.0 - Production

Windows NT TCP/IP NT Protocol Adapter for 64-bit Windows: Version 11.2.0.1.0 - Production

Time: 08-JAN-2010 12:01:23

Tracing not turned on.

Tns error struct:

ns main err code: 12560

TNS-12560: TNS:protocol adapter error

ns secondary err code: 0

nt main err code: 0

nt secondary err code: 0

nt OS err code: 0

ORA-609 : opiodr aborting process unknown ospid (2580_4036)