as you provide your binary files mostly without a file suffix, the IE Browser is using the MIME type application/octet-stream.
This results in a direct display of your files in IE Browser instead of forcing a download dialog.
The only way to get the file is the known right mouse key context menu "save as" dialog, but for some company internal reason I'm not able to use this, since the download is going over our central virus scan engine and for that the download has to be started as normal left mouse key "open" dialog.
Can you Setup your Server to add to the binary files the HTTP Content-Disposition Header? This will force a download dialog in IE Browser as well.
E.g. for "vhclientx86_64" ==> "Content-Disposition", "attachment; filename=vhclientx86_64"