I struggled for almost two hours trying to figure this out.. downloading various runtime packages and such.. my problem was the missing msstdfmt.dll file.
I did as JD's instructions but nothing worked!!!! Even shut down antivirus.. I finally actually read up on the regsvr32 command actually did!
Anyway, in the end I left out the /u option so the command was: regsvr32 msstdfmt.dll
and it worked!
Good luck ya'll.