And seriously, why don't you already have IE7 installed? I, like most people I know, don't use it, but it's put on with Windows to start with, and there's no reason to uninstall it in the first place.
I know you were referring to the OP, but my reason is simply because I use XP as my gaming OS, XP installs IE6 as default, I have no desire to use the inbuilt browser so I shouldn't need to upgrade IE simply because I ought to.
If Impulse had a very simple "download and get it going" version that would be cool. Stardock probably won't spend effort on that because people using IE6 are very likely in the minority (and tbh I'd rather they spend dev time on more important stuff), but it would just be nice to buy a game and get it installed without having to jump through hoops.
It isn't a lot of effort, but it's more than it should be IMO.
Edit to add: And I just found out that you have to register with Ironclad's servers to get multiplayer. So why did I even have to sign up with Stardock?
That's IE7 which I won't use. Impulse which I won't use other than to install the game, and this account which I won't use (other than these posts) because I'm not much of a forum chatter. No DRM is good. Annoying and needless excess is bad.
Whatever happened to a setup exe, a cd key and away you go 