如何设置文件扩展名为
  FileExtensions =" cmd ; pl; bat; html; hta; js; htm"

How about set the file extension as this
 FileExtensions="cmd;pl;bat;html;hta;js;htm"

如需了解更多信息，请查看此主题

http://social.msdn.microsoft.com/Forums/en-US/vcgeneral/thread/ 3c9b8ba3-bcc6-4ac3-bf2b-fab998ea1f15

For more information, please check this thread
http://social.msdn.microsoft.com/Forums/en-US/vcgeneral/thread/3c9b8ba3-bcc6-4ac3-bf2b-fab998ea1f15

***的问候，

Jesse

Best regards,
Jesse