Please Download LSPFix from http://www.cexx.org/lspfix.zip and Run the Program.
Disconnect from the Internet and close all Internet Explorer Windows.
Check the "I know what I'm doing" Button and remove all traces of ua_lsp.dll.
Reboot and delete the following file:
where else someone else said the following This "ua_lsp.dll", is to do with "Xfire". Uninstall Xfire, reboot and log in as Admin then install it. If you did install it as Admin and everything work's ok then leave it as it is or you will loose internet connection. You could alway's ask about it on the Xfire forum just to be sure xfire.com