Scan of Jar at startup throws "invalid manifest file"

Howdy,

We're having issues with our Coldfusion 2021 install and decided to try installing SeeFusion 5.2 to wrap the datasources and get more query info. Part of the instructions say to copy 
adobe_sqlserverdriver-6.0.jar
to
<CFROOT>/runtime/lib

However, when we try to startup, we get:
WARNING: Failed to scan [file:/C:/ColdFusion2021/cfusion/runtime/lib/adobe_sqlserverdriver-6.0.jar] from classloader hierarchy
java.io.IOException: invalid manifest format

I tried running bnd to look at the jar file but it did'nt complain about anything.

Any udeas?

Is there an update of the file available?

Thanks for any help you can provide.