Windows 7 x64 and Oracle instant client (32 bit)

[garage_logician]

I have installed the latest version of PLSQL Developer and the Oracle InstantClient 11_2 on a Windows 7 x64 PC. After installing the software I added the instantclient dir to my path, as well as created a TNS_ADMIN, NLS_LANG and ORACLE_HOME env variable.

TNS_ADMIN and ORACLE_HOME point to the instantclient dir
NLS_LANG - AMERICAN_AMERICA.TH8TISASCII

When I run PLSQL developer the login screen appears and I can enter my userid/password. I can also select the database (indicates to me that it is using my tnsnames.ora). But, when I try to login I get an access violation error.

"Access violation at address 060DA6AE in module OraOCIIUS11.dll. Read of address 4E896543."

Any ideas?

 

[Marco Kalter]

Are there any other Oracle directories in the PATH? If so, does it help if you move the instant client directory to the front?