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.