Installation wizard hanging up

I have tried re-installing the CWYW plug in for endnote web because I have not been able to get the toolbar, or tab (or any link at all) to come up on Word 10.

However, the installation wizard brings up a message “searching for installed applications …” and gets stuck there. Nothing more happens.

Any ideas on why this has happened or how to get around it would be appreciated.

Incidentally, this problem is on our library demo computer where I do not have admin privileges, which I think I would need for uninstalling.