Had to replace hard drive in my Windows 10 pc. Magix recognizes my serial # for CD Architect 5.2, but I cannot find a compterID that will work. Have tried what I find in my device id, and the "machine" id when I last registered it with Sony. CD Architect tells me that the product is not properly installed. I would really like to continue using the software!
As this is an old Sony Creative Software product you might be best posing on the Vegas forum. There's a link in the Important Posts at the head of this forum.
Searching the Vegas forum does bring up a few CD Architect queries.