 There are some interesting thing which I tried to understand the [different UAC behavior with Vista verion #5XXX with RTM version](http://technet.microsoft.com/en-us/windowsvista/aa905117.aspx). **How to not store file in virtual store when UAC is turn on? **Ans: Use trust info in your manifest info. It can announce UAC not to use virtual store(Virtual Store Redirection was implemented to maximise compatibility of applications moving into the more secure Windows Vista environment without the need to recompile application code). What if you don’t want to save file in virtual store when your privilege is not administrator? (Just let don’t let user to write file in such C:Program Files; C:; C:Windows … etc) If you add follow code in you manifest, virtual store will be disable. For this case, you should add trust infomation in your manifest file which like (Require Administrator/As Invoker). You can refer this article for more...