I'm a bit of a "'puter tech" myself and I have no idea what your "security" concerns are.....and, frankly, it doesn't matter.
From your reply and one other, it appears I did not phrase a statement clear enough. Let me try again, re: security concerns. MS is the one which created the "Notification Bar" that is displayed when you click on a download link. It was designed to "protect" the typical PC user, who has been described as one who doesn't "grasp the idea of, oh let's say... double clicking a file to install it, or for that matter they don't even know what double clicking means." I couldn't agree more. The vast majority of my clients are PC illiterates, many of whom didn't know how to move a window or resize it. Okay, back to the "Notification Bar". It is an alleged security measure which prompts the user to think (is that a joke?) before downloading a file which may be hazardous. What I tried to say is that I have no need of such "security" measures since I am very much aware of what I am downloading. Should a file be the product of some miscreant, I have plenty of security provisions installed to deal with that type of garbage. That's why I disable it in the Internet Options (they are named 'options' for a reason, eh?)
Yes, my PREFERENCE is to download ALL files to a location of MY CHOICE and to install them when I WANT TO or perhaps discard them without installing them. So yes, my PREFERENCE is to object to auto install files and/or programs. It isn't just Stardock but anyone's offerings. Can anyone here not grasp this? Is there anyone here who hasn't been rather miffed when installing a program to find out that some 'toolbar' has been automatically installed along with it with no option to opt out?
Bottom line... why is IE singled out for this 'auto install'? If one uses any other browser (assumed) you can download a file from Wincustomize like any other file via the Download Manager. My PREFERENCE is to have that choice with IE too. Do I think that SD is going to recode Wincustomize download scripts just for IE users, never mind me?..... that's a rhetorical question, right? I wouldn't even dream of something like that. It's difficult enough to have a support ticket dealt with in a timely fashion nowadays. Things have certainly changed from what they were in the past. And I've been a loyal SD and Wincustomize customer for many years.
Thanks to all who took the time to reply. Obviously, there is no practical resolution to this issue which I find acceptable. Being forced into using one of the viable methods described appears to be the only way to go... sadly.