Surfpack's Engine is a 32-bit Windows application and runs under Windows 95, Windows 98, Windows ME, Windows NT 4.0, Windows 2000, Windows 2003 and Windows XP.

Surfpack's DHTML interface currently works under Internet Explorer 5.0 or higher. Versions compatible with Mozilla and Opera 7.x are under relaxed development.

MSXML 3.0 or higher is required. The installer checks if this library is present and downloads it from the Internet if needed; Windows XP and MS Internet Explorer 5.0 and higher already include this library.

HTML page generated by Surfpack Startpage is accessible in offline mode, while may display outdated content (stored locally). Internet connection is required to update web modules content.

Microsoft, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries