Open an old HP cash register

[zhsri1]

Hello, we are trying to get rid of an old XP station that is linked to an HP receipt printer and an HP cash register. We don’t have the key anymore but I don’t want to trash the register as there is money in it. How do I open it ? I cannot access internet anymore as it is XP and I cannot login to the FTD account as we have not used it in 10 years….

[DGroves]

this site does not allow posting (or answering) requests that circumvent security features

[zhsri1]

This is a 12+ year old machine we bought, probably not even supported by HP anymore (I entered the serial number it was not even recognized…). 
i understand where they are coming from but it becomes paternalistic BS in this case.

Thanks for taking the time to answer though. 

[SDH]

Sledgehammer and crow bar... like in the old days.