Java documentations in Windows Help format

http://javadocs.planetmirror.com/

This Web site provides various Java documentations converted to Windows Help format. WinHelp and HtmlHelp systems provides a structured table of contents, a complete index, and a full-text search feature. Don't remember the parameters of StringBuffer.replace() ? Just type 'replace' in the index, and you get it in a snap. Alternatively, you can browse the table of contents tree to find the StringBuffer class methods. All the documentation is packaged in a single CHM file, and is instantly available, even if you're offline. It saves me hours of API browsing. I hope it will be the same for you.