How do I remove unwanted startup programs from Win XP Pro System Tray?

Unwanted fluff in the SysTray eats up system resources. Some things have to be there for proper system operation. But lots of other stuff is just there because every software engineer seems to think their program is the most important in the world and should load halfway at startup so it opens quicker when requested. The bloat this adds to the SysTray can seriously degrade machine performance and lead to frequent blue-screen-of-death crashes.

I know I can unhide, then right click and kill them one by one after I boot up. But for some reason, stickykeys has decided to launch every time I boot up. I have to kill it by hitting the shift key 5 times in quick secession. OpenOffice thinks it should be in the quick-launch mode, eating up system resources when I almost never use it. Likewise several other programs that I am perfectly willing to wait to load don’t give me that option. I want my system clean and fast, not bloated down with quick-launch routines that every software vendor thinks belong in the System Tray. I know how to launch regedit from the run menu, but where to go then to find how to remove items from the SysTray?