The short answer is: "it's a dead and unsupported product".
so it should be written explicitly
What is the purpose of offering a product that needs an activation code that is no more provided, and without the unlocking code the product will expire?
It doesn't make sense for me
Guys at Cosmic are still offering their demo version of the C compiler for HC11, where the limitation is only about the amount of code you can compile; of course, they don't give assistance either technical support, but their product won't expire.
The "legacy" folder is there for... legacy reasons
Well, there are a couple of dudes on the Internet offering for some bucks a kit they have recently purchased from a US-government facility which was removing excess. This kit contains a 68hc11 board and all the necessary cables and gadgets, and also a couple of floppy disks with Icc11 on them, offered with an unlocking code.
I don't know it's cracked or not, but it comes in mind that if people crack the software ... there must be also a reason for this