None of my original searches on them suggested that they were particularly malevolent, just wouldn't uninstall easily. Most said (as in bobad's 1st link above) that an ordinary uninstall just didn't remove the program. The one site I found had successfully removed them with an uninstall from Safe Mode as suggested above.

If you can't get to Safe Mode, there are other ways to remove files which are locked during system operation - HijackThis has an option to delete files on the next startup (before the system locks them). However HijackThis is a program you need to feel confident about to use (never use the Fix option unless you really know what you're doing - it highlights things that are potentially problems, but might be part of normal system operation - fixing them will probably stop your system!). However the delete files on reboot option (from the Misc Tools button) should be OK. If the programs install as screen savers (as one of the sites I looked at suggested) you should find them in the Windows/System32 directory, probably as .scr files. (However that's only surmise). Deleting these may leave rubbish in the Registy, but I suspect that most peoples registries have a lot of unneeded rubbish anyway! If you delete the files, you can have the entries removed from the Add/Remove program list by just trying to Remove them - it will tell you the files are no longer there and ask if you'd like to remove the entry from the list.

As I said, the sites I looked at didn't suggest they were dangerous.

Not having Safe Mode working is (probably!) a different problem, and not something I'd like to have not working on my machine. However as JiK suggests it may need expertise to sort that out.

Mick

(PS - I should have said to try the Remove anyway - they might have fixed the installers since the entries were posted on the sites I looked at).