PL/SQL Developer on WindowsXP x64 edition?

[nEJC]

I just got new HP xw6200 workstation at work but can't get PL/SQL to connect to oracle (I allways get ORA-12154 error)

Oracle tnsping works, Network Configuration Utility sucessfully tested connection, SQL*Plus works...

config:
* WindowsXP professional x64 edition
* CPU Intel Xeon 3.4GHz
* tested both PL/SQL v5.1.6 & v6.0.5
* tested Oracle clients 9.2 & 10.1
* Oracle server is 9.2.0.4.0

Is PL/SQL's not compatible with x64 or should I continue searching somewhere else?

Thnx for any info...

 

[nEJC]

Just found what is wrong!!! Damn M$...

PL/SQL as 32bit application is by default installed on x64 system to
"C:\Program Files (x86)\PLSQL Developer"
after re-installing it to
"C:\Program Files\PLSQL Developer"
everything works perfectly...