[markusboy]

It's extremely simple, just 2-3 clicks after ziping with 7zip. But again entirely it's up to you.

Thanks for your effort to help but no need because i not zipping anything........
Just i uploading the downloads that i download from erWin........
But for your info, before to post and to share anything first i testing the erWin downloads and of course my Mega links uploads (to a friend computer)..........
Regarts.........

Actually the hash thing is not only to check if you uploaded correctly but also and more important if the others downloaded correctly. There are many online software that creates sha1 hash within seconds. You drop the file on the browser and it generates the code. Then the downloader does the same with the downloaded file and should the code is the same then he's 1000% sure he got the file right. Not much of a benefit for you (except people buzzing you for corrupted files) but a little help for downloaders. 
Ofcourse this is not a requirment from you. Just sharring the data with us is a lot allready.
Just giving ideas... Thinking out loud...
I'll download the last flashdata and generate sha1 hash. Let's see if it will be of any assistance to downloaders.