Hi Acadia, sorry to hear you're having problems with LeMistral. The issue seems to me like the file is not completely finishing downloading. It is too large of a file and our system doesn't show that you have tried to re-download since Blake reset the downloads.  It's critical that you first remove all instances of the corrupted zip file before trying to redownload.  

I was able to download and open the file, but it does take a long time. It is very common for WinZip (and all the other unzipping software) to think a file is corrupt if the file didn't completely finish downloading.  I'm sure you probably already know this, but just in case, please make sure you do not close your browser while the download is in process. And, it's such a big file, I'd suggest trying not to do anything on your computer while it's downloading (just to help make sure nothing interferes with the download).  

If you have ANY download helpers (accelerators), please disable them, remove all the zip files to that product that you've already tried to download and then try to download again. 

If the problem continues after trying the above, please let us know and we will have to split up the zip file into two parts and then have you try again. 

Thanks!