Looking for the simplest way of exposing product help on the web in MSDN style, or integrating full-featured help browser into ASP.NET application? Help Server Express is freeware ASP.NET application allowing to browse the .CHM (and in the nearest future - .HxS) help files without extracting their content to a temporary location. It exposes them in almost the same fashion as built-in Windows Help Viewer or MSDN Library Viewer does. See online demo - it exposes 2 CHM files containing nearly 10000 topics and 18 Mb of compressed HTML (uncompressed size is ~ 150 Mb)!