You're using the precompiled headers in MSVC++. You can turn off these features in the project settings or you can turn them off globally so it affects all programs later on.
Essentially, precompiled headers load much faster after the first compilation. The advantage to this is to allow the speed up, as mentioned before, by only compiling the header files once. The down side to this is that when you change your headers, which shouldn't be very often, you can sometimes get errors. I don't use MSVC++, but I believe there is an option to rebuild the project. This should solve your issue since it forces all of your header files to be recompiled again.
> The included MinGW is obsolete.
> The many known bugs may never be fixed.
Appears to be based on personal prejudice rather than facts.
> The IDE lacks some of the features of more modern IDEs
Don't know about this; but from the link, the Dev C++ IDE seems to have most of the basic IDE features in place. The choice of an IDE is a very personal one. Can't we let people decide on their own what IDE they fancy for themselves?
EDIT: Ok, I now see from the date that the article on Dev C++ on this site is obsolete. Update it (or remove it) perhaps?
The article on this site refers to the BloodShed Dev-C++ IDE. It is severely outdated and no other Dev-C++ compilers have officially been marked as its predecessor. If you would have read the article in its entirety you would have known what was being referred to.
Orwell's Dev-C++ isn't bad by any means, but I still believe it hails in comparison to Code::Blocks' IDE. I started coding with Dev-C++ and it will always have a place in my heart, but hopefully the coders over at Code::Blocks can wrap everything together into a nice neat bundle again soon. They're long overdue for a public release.
Personally, I prefer to use Visual Studio, but objectively examining potential problems it's pretty clear there aren't any real issues with using either Orwell or wxDev-C++, which have both been updated.
Unfortunately, it seems a lot of beginners are still coming across the original BloodShed Dev-C++, which is the software mine and the forum-based article are trying to discourage; it was horribly broken when I originally posted about it in 2008, and has only fallen further behind over time.
I've tried to be reasonably clear in my own post that I'm singling out that software and not the newer updated versions, but I think it's very important that beginners continue to be discouraged from using the original software -- if some of them mistakenly avoid the updated versions as well, I think that's a result we can live with.