Yes, I have it enabled for everything. The only issue I seem to run into is that occasionally an older game won't run with it enabled (usually a BEX error signals this), so I have to make an exception.
Default, when I tried it for all programs, it always caused problems and never reported, that it was due to DEP, so I spent days trying to figure out the problem.
There are people who actually bothered to manually set it as AlwaysOff, or are they confusing the meaning of no?
Yes, I do in fact use DEP despite voting no. I did not know it was enabled by default under Windows 7.
Always On. If I come any program that conflicts with that setting, it either gets a temporary treatment (if it's a portable app that doesn't need to be used often) or thrown out of the window. More often than not, it's the latter.
On my PC with Win-7 64 bit - Opt out - for Advanced uninstaller only. On my PC with Win-7 32 bit - Always on - no problems with Advanced uninstaller.