How to: Change Platforms in Device Projects
You can switch back and forth between platforms in the same project. For example, if you are targeting a Pocket PC platform, you can switch to target a Windows CE platform, as long as the new platform targets the same version of the .NET Compact Framework as the original target.
To change target platforms in a device project
On the Project menu, click Change Target Platform.
In the Change to box, select a different platform, and then click OK.
The only platforms available are those that target the same version of the .NET Compact Framework as the active project.
See Also
Concepts
Creating and Developing Managed Device Projects