SIP is a browsing aid designed to auto close "sponsor advertisement" windows. Surf In Peace (SIP) automatically determines which windows to close by comparing their name (including wild cards), size range, or a combination of both, with entries in your list of annoying windows. As a starting example, the program comes with a working initial list of common advertisement windows (such as, windows named "Some words from one of our sponsors..." having a width of 527 pixels and a height of 158).

SIP does not modify any existing DLL, Internet, or Windows Registry settings. It requires no typing, has a configurable "attack" level (that determines how aggressively SIP looks for windows to close), and can dump its kill list to a text file for distribution to friends. You can even make SIP display the matching rule before it closes a given window. The application runs as a convenient icon in the System Tray area of the Windows taskbar and requires very little system resources.