Does vecna.wizards.com still work?
Right, I guess the alternative is to get hold of the good old CBLoader, or Hero Labs, or something else that can do 4e PCs (I think there are a couple of programs that handle them to some degree, not sure how well). Masterplan IIRC has monster editing, etc. So you can kinda reproduce a LOT of what the DDI tools do, not for free, and not as nicely, but its at least possible.
I'd just like a decent Monster Builder.
I've found the problem to be usually tied to having "old enough" versions of the << Microsoft Visual C++ "YEAR" Redistributable >>I'd just like a decent Monster Builder. The beta offline version worked fine, but I cannot get Windows 10 to accept it. (Apparently installing in administrator mode and legacy mode simultaneously is impossible.)