I tried the original and alternative download
The downloaded file is 49KB in size with the following content:
https://drop.me/B4Z5La
The size of the correct Winapp2_v170713 file is 850KB
http://funkyimg.com/i/2vrdZ.jpg
http://funkyimg.com/i/2vre1.jpg
http://funkyimg.com/i/2vrdY.jpg
I tested on a virtual machine with clean Windows 7 and 10 x64 – on these systems, too, an error
Probably, the problem is in my ISP.
Are there any solutions?