To uninstall the software, because system cleanup has removed the existing msi or the file is missing, then do these steps.
1. Run the original beta2 setup and when the dialog is displayed copy the setup.msi file from the temporary folder.
The temporary folder can be displayed by typing %TEMP% in the Start -> Run command or My Computer address bar.
(Temporary Folder: C:\Documents and Setting\<Login Username>\Local Setttings\Temp)
2. Copy the setup.msi file from Temporary folder sub-folder {D3DC8552-2579-45C0-BD02-A0C1C64B1181} to your My Documents folder:
%TEMP%\{D3DC8552-2579-45C0-BD02-A0C1C64B1181}\Setup.msi
3. Open a DOS window to uninstall the software. To display a DOS window type cmd in the Start -> Run command.
In DOS windows run command: msiexec /X "c:\Documents and Settings\wilbur\My Documents\Setup.msi"