Upgrade SCO 5.0.2 Host to Enterprise with license

Hello,
I have an old system SCO 5.0.2 HOST (without network) and some applications on this machine. Theses applications are not installable again on other system because i have not the routines. And it's now necessary to connect this old system on local network for a "new" application.
I have SCO Licence Enterprise (but not the media) and i would like to know if it's possible to upgrade the HOST licence to Enterprise license without uninstall the applications already on this system. :confused:

Thanks you very for your answers and your suggestions.

Lionel