oracle connection problem with Xp-32bit

[vijay victory]

Configuration:
Application server : windows 2008 server R2 - 64 bit
Oracle client 10g : 64 bit
Visual Studio 2010 : 64 bit
Client side : 32 bit-XP

Successfully running the code on application server for oracle connectivity. But after IIS configuration of application server while accessing application from client side not connecting with oracle database.

It does not display the reports generated from Oracle on 32-bit XP
But it shows on 64-bit Win Server 2008.

Anybody help me??

I have never failed,I just found 1000 ways that never works. Regards, Victory.