I was not able to reproduce this problem:
1. Installed the sitehound BHO
2. Ran Registry Finder, search word=sitehound, got 59 hits
3. Started IE to confirm presence of sitehound; linked to 2 or 3 websites; closed IE
4. Ran Registry Finder, search word=sitehound, got 59 hits
5. Uninstalled sitehound using Control Panel Add/Remove -- it left behind an empty Program Files folder and an empty Start Menu folder
6. Started IE to confirm absence of sitehound
7. Ran Registry Finder, search word=sitehound, got 55 hits
8. Removed all 55 with Registry Finder
9. Ran Registry Finder, search word=sitehound, got 0 hits
Is there any pattern to the 1000's of hits you get with your search?
How about doing a copy and paste of a few examples into your next post?