Q:

C# application when build in Visual Studio 2010 64-bit does not work well

I'm working on a project on Device Simulator. If someone uses it and chooses a device to simulate, another application(Net Viewer) must be capable of detecting the device being simulated and the IP Address of the machine using it.
Here's my problem.
I am using a 64-bit OS and my other teammate is using 32-bit. When I tried to build the project on my PC and ran it, the Net Viewer wasn't able to detect my IP Address. But when my teammate built the project and ran it in his PC, it worked well. Then, we tried to run his built project in my PC and it worked fine. 
What is causing this problem? We are both using anyCPU on Build Configuration.

A:

It turned out that an alert handler was causing us the pain. My teammate solved this issue. I will try to post the code snippet that caused the problem anytime soon.
Thanks to all those who shared their ideas. :)

