WinXP superfluous virus protectors

#1
HELP needed to remove "antivirus" programs:
1/ AVAST. Operates annoyingly. No removal tools.
2/ Microsoft Security Essentials. Keeps inactive red logo even when alternate antivirus active.
This makes them viruses!
 
#3
Not in "Add or Remove Programs"... The "Avast" directory contents are not removable in TCC. REGEDIT cannot remove parts of Avast, either. I presume what's left of the Avast virus is loaded on log-in to prevent brute force .
removal

BRW, I succeeded in removing the Microsoft Security Essentials.