The Off By One Web Browser

"The Off By One Web Browser may be the world's smallest and fastest independent Web Browser with full HTML 3.2 support. It is a completely self-contained, stand-alone 1.1MB application with no dependencies on any other browser or browser component. SSL support provided via OpenSSL. Unique features include an image zoom capability and a text search that scans the pure (non-tag) text of multiple HTML files. Requires no installation, can be run from a CD or network."

edit: the setup from download.com is an install, but you can get a zip file with just the 4 files required to run it from here

I must say, I just tried this out for the first time now and the review's aren't kidding, this browser is fast as all hell!