Okay, it’s time to tell you the must install applications on HTC HD2. I forgot to do so previously. Microsoft .NET Compact Framework 3.5 is a must install just like the desktop version. Most of the Microsoft mobile applications need it.
Well, you can download Microsoft .NET Compact Framework 3.5 at Microsoft website at 33.3 MB. Besides big file size, you need to install it from desktop PC. It is not a very user friendly method as most of my HTC HD2 applications are in CAB format and store in my microSD card. Luckily, there is lot of good people out there who extracted it into cab version at 2.6MB size only. By the way, DO install it at device storage. And this version should support other Windows Mobile phone like Windows Mobile 5.0, 6.1, 6.5 or 6.5.x too.
Download Microsoft .NET Compact Framework 3.5 cab here.