you may also just drop msstdfmt.dll into the same folder as Aurora.exe. I run this off my jump drive and don't want to have to register all the dll's in windows at each computer that i use. If the needed dll's are in the working folder aurora finds them just fine.
This didn''t work for me with vista 64bit. Placed the dll in the applications directory and the error persisted, even after restarting the application. (didn't try a reboot). It worked though as soon as "regsvr32 msstdfmt.dll" was entered in a command prompt (after changing to the game directory). Might help less experienced users.
It would help even more if it could be installed with the game. During installation I also had to manually and repeatedly select "don't overwrite" for maybe a dozen other dll that I'd already got in a more up-to-date version. Maybe time for a new installer if possible ?