That seems a question for the maker. Their site a has link to their technical support.
But I've never seen a system being dependent on the OS of another device, if that other device supports the same protocols for an interface.
I am trying to find a low cost option for a small business inventory system. I have found a Datalohic DL-kyman model which is currently running windows CE. To be compatible with the business software I would need it to run windows mobile. Does anyone know if and how a upgrade from windows CE to windows mobile would be possible on this device? Thank you!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic