Hi Mike,
Ravin gave good advice. You should be able to boot from your original disk and have xp rebuild the registry especially if you saved a copy first.
When you get it fixed get a copy of Norton's Go Back. I found grandkids can mess up a computer in a hurry. Then I found Go Back. It works better than Windows Restore. When you first turn your computer on it goes to a screen where you can go back to a previous boot time and restore to that time. It has saved me a lot of re-installs.
Lots of Luck
God Bless,
"John 5:39 (KJS) Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me."
™ Version 4.2
