How to force Windows Mobile device to use GPRS for internet connection

I'm on WiFi and EDGE/GPRS too. I'm using WiFi for debugging in Visual Studio 2008 but I want my app use开发者_如何转开发 EDGE/GPRS for internet connection (socket creation) not WiFi

thx & bye, Attila

---

I found the solution: I deploy my app on device, I turn off wifi, I start my app, It uses GPRS, finally I turn on wifi and attach debugger to my device