作者：gooogleman（www.gooogleman.com站长）
以前曾经看了一下.net 组件的一文档，但是不到三个月居然记不得了，真是阴功啊，现在再看了一下PB帮助吧。
Implementation Considerations
The following Sysgen variables control .NET Compact Framework functionality:
| Sysgen variable | Catalog item |
|---|---|
| SYSGEN_DOTNET_SUPPORT | Adds all the necessary files to your OS design — OS dependencies — to enable the .NET Compact Framework to run. However, these files do not include the .NET Compact Framework. |
| SYSGEN_VS_SD_AUTH | Adds the Smart Device Authentication Utility, SDAuthUtilDevice.exe, which is a tool to help facilitate Windows CE development on Microsoft Visual Studio® .NET 2003 on a device that does not use ActiveSync. |
| SYSGEN_DOTNET | Adds the .NET Compact Framework 1.0 and the .NET Compact Framework Service Pack 2 to your OS design. |
看来这个os dependency 的net 是保证.net 运行，但是不包含.net 框架包的， 所以得两个都选。
还有一个问题就是.NET Compact Framework 2.0 - Headless和.NET Compact Framework 2.0 到底有啥区别？Headless到底指的是什么，在PB帮助没有说明，有知道的来说说看吧。