Programs Designed For USB Drives

Some great stuff here (especially in the comments) that you might want to carry round on your USB stick. Highlights include Portable Firefox, puTTY and RUNT Linux or Damn Small Linux. For repairing a PC after a malware/virus infection, Trend Micro have a Damage Cleanup Engine / Template which might come in handy. Also, if you want to turn your PC into a server then Uniform Server might be the answer. Has PHP, MySQL, Perl, and the Apache HTTPd Server all ready for your USB stick. Portable Freeware might also come in handy. Includes utilities as well as games.