Hi @ radarkeiselis,
Try downloading the appropriate 32 bit or 64 bit Win Vista /7 drivers from here or use the links in the answer above to get the drivers.
Locate the downloaded file in the Downloads folder of your computer and then right click on the file and select Troubleshoot Compatibility.
Hopefully Win 10 will be able to enable the file to be installed in Compatibility mode so that it will work correctly in Win10.
As the Labelwriter has been classed as a discontinued product by the manufacturer there is no further support from them regarding the problem. Support started with Win 98 and ended with Win 7