what do you mean share the QT wallet for windows with .exe file? do you mean upload it in an exe file instead of a zip folder?
we upload in zip folders because a LOT of internet browsers(i know chrome and firefox both do this) block the downloads of less used .exe files. and then u have to manually enable to download. it is a lot easier for most users to just download a zip file and extract it themselves.

the wallet requires a redownload of the blockchain because the indexing in the file is completely different. (and faster). i will provide a blockchain file to download as well because i know a lot of people hate resyncing (this should be the last time any update will ever need a resync).

i will be here all day testing the wallet to make sure all the functions work. if everything is good we should be releasing tonight. i will more than likely be checking the forum threads inbetween builds and while it is running its tests. (so like every 15 minutes or less)