If you search this group, this has been discussed a number of times, but
with no clear cut result. Early on in the beta there was a .RU poster who
said that he had a script working to deploy the app, but looking at the
script required registering at his site, and I didn't do that, nor did I see
anyone else say--yes that works!
You can unpack the download executable with the -a switch, as I recall, to
get an MSI and two or three subdirs of "stuff." However, a number of folks
who tried the appropriate switches to do a silent install found that the
installed product didn't work--error 101, as I recall.
I really don't recommend spending too much time on this--this product isn't
designed for this usage, and when a version that is becomes available, it'll
be properly documented.
OTOH, if somebody does solve the puzzle, I'd be glad to publicize it, make
sure it gets in the FAQ, etc!