K8000 and BC7 (qbasic)

My recently build K8000 interfacecard works fine with the testprogram which was delivered with it.
If I try to run the exampleprograms in BC7 (a later version of qbasic) I get no response at all from the card. I tried all printerports but nothing works.

Is there anyone with experience with this?

You can’t run QB to drive your K8000 on a Windows PC, it must be a MSDOS PC, maybe that’s your problem ?

Your right; in a pure DOS environment it works without problem, but after putting all *.dll and *.sys files from the installationdisc in the systemfolder of windows it works too. Aswel in QB45 as in BC7.
But thanks for the reaction.