ATM Deluxe compatibility with Windows 7 64 bit?

On the 64-bit side, what Dov said.

On the 32-bit side, it is quite possible to hack an ATM install it on Vista, and not even very hard. I actually documented it on behalf of Adobe back in the day. I don’t know it if would work or blow up on Windows 7 or 8, and given that we don’t know, there is a real risk of damaging your OS.

(On Vista 32-bit, all you had to do was copy over the installed ATM files, and the app would run just fine. You just couldn’t run the ATM Deluxe installer on Vista.)

Of course none of this is supported or actively recommended by Adobe or me. Even the 32-bit Vista hack was “this appears to work, try it at your own risk.” Though I ran it myself for several years with no trouble. 

Frankly, the ONLY reason I would even try such a thing today is if I or somebody desperately needed the ability to create and use Multiple Master font instances. That is the only thing you totally can’t do with anything else, and itself might or might not work with current apps, even if the functionality worked in ATM Deluxe. I am pretty sure Adobe apps removed MM support years ago, not so sure about third parties, including Windows itself.

So there you go. If you are in the market for a font manager today that is actively developed and maintained, there is always our product here at Extensis: Suitcase Fusion. (Or for client/server needs, Universal Type Server.)