Winadmin will only work up to CTX software 2.22. Once the software gets above 3.00, the system is called a CIX and you need newer admin software called eManager. You may be able to do several things using WInadmin on a newer system, but then you may get a lot of errors, especially with card assignments.

Most older cards from a DK system will work with the CIX. A BDKU should work in a DK if you put the jumper in PDKU mode. I believe the CO cards will also work in a DK, if that is what you are asking.