开启了UAC后，很多exe程序就给自动标识了UAC小盾牌图标。
到底Windows系统是如何判定呢？
参见：Windows Vista Application Development Requirements for User Account Control (UAC)
老应用程序，大致这么判断：
- Filename includes keywords such as “install,” “setup,” and “update.”
- Keywords in the following Versioning Resource fields: Vendor, Company Name, Product Name, File Description, Original Filename, Internal Name, and Export Name.
- Keywords in the side-by-side application manifest embedded in the executable.
- Keywords in specific
**StringTable**entries linked in the executable. - Key attributes in the resource file data linked in the executable.
- Targeted sequences of bytes within the executable.
说白了就是，对老程序，Windows既没有“沙盒”运行来判定程序所需权限，也不会静态反汇编分析程序权限，只是根据一些特征字判断……
新程序，大概需要：
When developing new installation programs, much like developing programs for Windows Vista, be sure to embed an application manifest with an appropriate requestedExecutionLevel element (see Step 6: Create and Embed an Application Manifest in downloadable Help file). When the requestedExecutionLevel is present in the embedded application manifest, it overrides Installer Detection.
