This is a Windows system installed file with Windows File Protection (WFP) enabled.
browseui.dll has 70 known versions, the most recent one is 6.1.7601.17514 (win7sp1_rtm.101119-1850). It is installed as an Internet Explorer extension and will start when IE loads. The average file size is about 1 MB. Some variations of the file have been seen to be installed with the program Windows Internet Explorer 8 from Microsoft Corporation.
BrowseUI.dll is responsible for the browser user interface, including the browser chrome, which houses all the menus and toolbars. Maintains an updated list of computers on the network and supplies this list to computers designated as browsers.
(Note, the programs listed below are for all versions of Shell Browser UI Library.)
(Note, the behaviors below are for all versions of browseui.dll, select a unique version for details.)
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved'
Located in the registry at 'SOFTWARE\Microsoft\Internet Explorer\Toolbar\WebBrowser'
United States installs about 41.75% of Shell Browser UI Library.