Therer have been several of these occurrences recently. I don't know what you folks are doing, but something is removing the file.
Do a search on your system for the file. I show it in 3 locations, 2 of which are in a nro.tmp folder, and the other in an Ahead\Lib folder.
Some folks have been able to replace the file and some have had to reinstall to regain useability. I know you said you already reinstalled, but did you use the Clean Tool first?
If you find the file, place it in the C:\Program Files\Common Files\Ahead\Lib folder and perhaps reboot if it doesn't work otherwise. If you can't find the file on your system, you could check the net, but it may not be the version you need.
If that doesn't work, do another reinstall, but use the Clean tool to remove the old install, and reboot and reinstall. If this doesn't help, check the thread below to see if you can get any help there.