ADO - oConnection.Open - Memory Access Violation

[Heinz Salomon]

The following code produces a "memory access violation" error ONLY in the PBCC debugger immediately AFTER exiting the PBMAIN() function:

#DIM ALL
#DEBUG DISPLAY
#DEBUG ERROR ON
#INCLUDE "WIN32API.INC"
#INCLUDE "ADODB.INC"

FUNCTION PBMAIN() AS LONG
  LOCAL oConnection AS Int__Connection
  LOCAL vConStr AS VARIANT
  LOCAL vCursorLocation AS VARIANT
  LOCAL vTimeout AS VARIANT
  oConnection = NEWCOM "ADODB.Connection"
  IF ISNOTHING(oConnection) THEN
    EXIT FUNCTION
  END IF
  vConStr = "Provider=MSDAORA.1;Data Source=xxxx.prod;User ID=ADMIN;Password=xxxxx"
  OBJECT LET oConnection.ConnectionString  = vConStr
  vTimeout = 10
  OBJECT LET oConnection.ConnectionTimeout = vTimeout
  vCursorLocation = %adUseClient
  OBJECT LET oConnection.CursorLocation = vCursorLocation
  OBJECT CALL oConnection.Open
  OBJECT CALL oConnection.Close
  oConnection = NOTHING
END FUNCTION

Exception: Memory Access Violation
Program tried to read or write an invalid memory address

When I run the EXE in "run mode" or outside the debugger, no error is triggered. I can even load recordsets and display their contents without error and get the expected results.

What am I missing? Can anybody please help me?

Regards
Heinz Salomon