Flashdrive protection and antivirus's

hey i was woundering if there were any security tools for a flashdrive anyone recamends?

im looking for portable programs so i can fix my friends's computers.

so far i have:
kaspersky virus removal tool
clamwin
avira
and i did have others
what im really looking for, is a portable version of AVG and Malwarebytes...but none have came out yet. has anyone heard if they are making these programs portable at all? id like to know when they would be out.

does anyone know any programs that will fully uninstall programs? (no specific program, just any of them) there are times i have to work on a XP computer and i dont like the layout of XP control panel.

and a program to uninstall all antivirus's, this will come in handy alot.

thanks for any and all help =)

Portable Malwarebytes
http://portableappz.blogspot.com/2010/03/m...t=Yahoo%21+Mail

if you run this program it will ask if you want to write the regestry, and no matter what you answer it will not startup.....whats wrong? is it safe?

Revo Uninstaller is a great program to remove all traces of a program when you uninstall it.

Dr Web CureIt is a portable AV program
SUPERAntispyware Portable is a portable anti-malware program. (If the link didnt work, it is the first link here)