Unable To Register Macromedia StudioMX 2004

I have been running a Windows XP VM on a 2009 iMac, since 2010. I run several Windows business applications in this VM.  I have used the Windows XP VM without issues, for twelve years.

I replaced the 2009 Mac with a newer iMac, in May. I installed Parallels 17 and the Windows XP pvm file. All works well.

I purchased a Windows 11 license from Microsoft, and, I created a new Windows 11 VM. All works well.  I intend to upgrade my seven year old accounting software to the most recent version, and, install it in the Windows 11 VM. I want to continue using my older business applications, in the Windows 11 VM. (They are compatible with W11.) Eventually, I want to remove the Windows XP VM from this iMac.

I have installed most of the older software on the Windows 11 VM, successfully.  All of the software works well.

I installed the Macromedia StudioMX software in the Windows 11 VM, successfully.  I entered the product serial number.  Neither the online registration method, nor, the telephone registration method are working.

I am content to use the eighteen year old Dreamweaver, Fireworks, and FreeHand.  They serve me well.

How can I register this software, or, make the software work?

Thank you.

Kurt