I am also looking for these files.

As I worte in a an other section...

it is NOT an Autel device and therefore why do you expect updates from Autel for this ?

But,
you may find files here

http://www.auteltech.com/UpdatesDownloads/429.jhtml#

but if you kill your device do not come back to complain.

 It looks to me like the Autel MS409 appears to be a twin brother to a Cen-Tech 99722. You check tool information on the screen of your  Cen-Tech 99722 see what the version of software, LIB version etc is at  . Download the MS 409 zip file, un zip and see what the software version and LIB version of that is compared to what is on your equivalent looking Cen-Tech 99722 before trying anything.

http://www.auteltech.com/UpdatesDownloads/429.jhtml

 i have waited 8 years for a response...TY

 its a dead end

https://www.auteltech.com/autelcms/Old%20Products/519.jhtml