Hi!
I first found that out when compiling under a 64-bit Windows (think that was Pelles C, not sure). So that's how it ended up in the documentation. Fortunately I had anticipated that remote possibility when I designed the format, so internally 4tH "knows" the sizes of the different basic datatypes it uses - and checks for them loading it - as you experienced personally. That's why it complains about "Bad object": the byte code format is invalid.
BTW, I corrected that one in the documentation, so it won't pop up in v3.64.3 again. For some weird reason I named that directory "4th" in the Unix version and "examples" in the Windows version. But that's pretty sloppy of me, because the last thing you want to do is to confront new users with a tutorial that doesn't match the actual installation - so thank you for that.
Currently I'm busy putting together several episodes. But since everything I do follows the motto "This is supposed to be fun", developments drift from one subject to the other. Well, that's how it is :-) Sometimes you get two episodes in a week, sometimes it takes me six months!
Glad to hear everything worked out okay for you! And thanks for the compliment (I blush easily :-).
Hans Bezemer