Which meant you could use it in Internet Explorer but not anywhere else. But it did make for some interesting web pages. I built a custom one with the mascot of the university I was attending at the time. It was, let's say, some peak 1990s internet. (Never shipped it to anyone, just had it internally.)
That took some non-trivial web searching. "Microsoft" "Agent" and most of the other keywords are pretty well covered by a few million other web pages by now.
Damn I do love the collective brain of HN. That was exactly what I used!
ActiveX and OLE... technologies ahead of their time, eh. VB, VBA, Internet Explorer, standalone VBScript, C/C++ - didn't matter, it all was (trivially) interoperable.
And I 'member that you could program it from VBA somehow. Think via OLE, but I was a kid back in the Clippy era.