a2cmd.exe hung? in Other Emsisoft products Posted March 31, 2016 · Report reply W8.1 64bit I just restarted EIS in response to the msg about a new version installing itself, then read in the blog about improvements to, amongst other things a2cmd. What's that I thought? Nothing in th ehelp file so I looked in the install directory. Ah, a tooltip says "command-line scanner". Ok, better help? Let's see what it says: In a command window I issued: C:\"C:\Program Files\Emsisoft Internet Security\a2cmd.exe" /? which produced a UAC password prompt which I answered. And then what? Nothing. No response at all in the command window, though any attempt to move the window or click in it makes the system play an error 'bong' sound. ProcessHacker shows it's doing nothing, but IS elevated. I used PH to terminate it, and whatever that did, I did then get a response in the command window. It says, simply, "Access is denied". That's a pretty odd response to a /? I feel.