I went ahead and tried this...
by Lee Koo (ADMIN) - 4/25/12 12:58 PM
In Reply to: Smartscreen Filter stops downloading of Majic PC check by farr1020
I just downloading this title here from download.com:
Using IE9 with Smartscreen filter "ON"
The only pop up I got was "Do you want run or save pc_check_tuning_2012_81mb_us.exe (80.3MB) from software-files-a.cnet.com"
I clicked "Save" and IE did it's security checked and it passed and I saved the file and was able execute the file and ran the software with no flags.
Are you using IE9 or 8?