Okay, I'm guessing HotKey Keyboard is either a driver or add-on for the multimedia keys on the E-machines keyboard. It probably stopped working when the mini-pac drivers were installed.
If it's a driver - then removing the keyboard and using a different one should get rid of it.
If it's software, you need to keep it from loading, easiest way is to click Start and Run and msconfig (not sure if this works on XP), look for something named HotKey and uncheck it (in Win.ini or autoexec.bat, etc.)
Note that if you do this, the multimedia features on the keyboard won't work until you re-enable it (if you have it on disk somewhere), if that matters to you.