Printer Issue in Medisoft program only


I have a client running Win 7 x64 with an local USB-connected HP 2015d printer.  The printer works 100% of the time in every program except one, called Medisoft.  Medisoft prints 100% without issue to every other printer besides the 2015d.  Sometimes Medisoft and the 2015d work, and sometimes it causes a fatal error and shuts down Medisoft.  It is important that these two work together.

I've tried reinstalling the printer multiple times with a few different drivers - HP Universal PCL 5, PCL 6 - and i've tried adding a x86 driver under "Additional Drivers" as well.  When this computer used to be a Win XP x86 system, this problem didn't exist.

As the tech, what other things can I try?  Thanks!!!
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The problem isnt the printer, its the app....

Try uninstalling it, and doing a fresh install... Apply SP3 if you can, if it isnt already there.....

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What version?

Medisoft 16?
Looks like thats the only one that fully support 64bit on Windows 7, is release 16......

15 and prior specifically specify not to install on a 64bit OS.....

Might even see if you can point it to the Vista 64bit driver......
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efeinbergAuthor Commented:
They're currently on 15 SP2.

I just installed the SP2 a few months ago, I thought their supplier had them on a current version.  Anyways I'm looking into both your suggestions, will reply when I get some results.  Thanks john!!!
i had this problem once but with another printer i had to connect the printer with the parallele port I dont know what is the cause but it worked.
efeinbergAuthor Commented:
I agree, it is a problem with the program.  Unfortunately upgrading the program right now is prohibitively expensive for my clients.  Thank you sincerely for your input!
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