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Fatal NI connect error 12516, connecting to:
 (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=200.17.50.21)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=Pergamum)(CID=(PROGRAM=C:\Pergamum\HTDIG.EXE)(HOST=NAKAMURA)(USER=Usuario))))

  VERSION INFORMATION:
	TNS for 32-bit Windows: Version 9.2.0.1.0 - Production
	Windows NT TCP/IP NT Protocol Adapter for 32-bit Windows: Version 9.2.0.1.0 - Production
  Time: 30-OUT-2008 09:53:22
  Tracing not turned on.
  Tns error struct:
    nr err code: 0
    ns main err code: 12564
    TNS-12564: TNS:conexão recusada
    ns secondary err code: 0
    nt main err code: 0
    nt secondary err code: 0
    nt OS err code: 0