The first thing that I would do when you are at that computer is what Igor (a senior avast developer) suggested, upload the file.
Upload the zip file to the ftp server
ftp://ftp.avast.com/incoming:
Give the zip file you are uploading a unique name (e.g. Hubbaman_winrarloader.zip, etc), so they can identify it. It might not be a bad idea to create a text file (readme.txt) with any relevant information,
avast topic URL, user name, etc. etc. in the zip file.
- Using Internet Explorer, Connect to the link and drag the file into the Right pane and drop it, that starts the upload, you don't have read access to this folder.
Or
Upload it using the Run command-line in Windows: Windows Key + R (to get the run box), copy and paste this
explorer ftp://ftp.avast.com/incoming
and drag the file into the window, from another explorer window.