all the time and I don't find the prompts annoying. I'm glad they are protecting me from software that can damage my software. It's also not that bad when you consider the fact that Linux and Mac OS X have a system very much Like UAC but it needs a root password. That is a bit annoying. Can anyone give me some advice, info, hack, articles or even code that can help me to solve this UAC issue in IE toolbar. The problem is when I loaded an internet explorer with my ie toolbar(Add-in-Express) which perform read/write operation to a text file. But since with UAC enabled, the system blocked my code to write a text file. It works if the the plugin is installed as administrator, but again fails for any other user. I even tried with windows temperory folders but its not allowing write permission to the temperory also. I already try signing/certificates but no luck. I can't turn off the UAC or protected mode for security reasons. @Sumit Bohra: There is only one temporary folder that add-ons in Protected Mode can write too. See http://msdn.microsoft.com/en-us/library/\\... for more information on Protected Mode APIs including one to get the path to that folder (You need to use it to get the the location as the location can vary depending on the current user, the language of the Windows version and some other factors). In Internet Explorer 8 (Currently in beta), there are Protected Mode APIs to register a broker