Reregistering Sidebar DLL's

[Guest BillW]

My adult daughter's sidebar gadgets will disappear. If I close the sidebar

and restart it, I will get the "Windows cannot start the sidebar" error and

the sidebar will not restart. I can get her sidebar back only if I register

msxml3.dll, scrrun.dll and jscript.dll. Can anyone tell me why I have to

reregister these DLL's and if there's anything I can do to prevent the

situation from occurring again? Thanks