Error 1335 while installing Harmony Advanced

I just purchased Harmony Advanced and was using the premium trial with no problem, but while installing advanced I ran into this error message.

Error 1335. The cabinet file ‘Data1.dac’ required for this installation is corrupt and cannot be used.

I don’t think anyone else has ever had this problem, because I can’t find a single post about it.

Any suggestions? I already screwed up my PC once by doing a suggestion to change my maximum RAM use.

Generally, I have downloaded other software and the slightest glitch during the process corrupted something.

The first thing I do is download the software a again to see whether a second downloaded file produces the same result.