-119 is just the IS error code for "Failed to register DLL". The knowledge base really only covers programmer remedies, not user. The only time I had this it related to actual write and access permissions for the user installing the package - maybe there is:

a RO permission set on the target directory
admin priviledge needed to overwrite/install a DLL

Have you thought about the size of the registry hive, as well? Try increasing it and re-booting.

One of the few remaining Mk1 owners... #00015