If you have encounter the “Error 1935” message during a software install, chances are good that there are a few registry entries from a previous update or install that never got removed. (error below)
Solutions for this error can be found at the links below.
Microsoft KB: http://support.microsoft.com/kb/970652
Microsoft Fix Download: http://support.microsoft.com/default.aspx?scid=kb;en-us;946414
