Hello all, I would like to use the LPT port of Win-Test. Operating system is Windows 10. When activating LPT I get an error message: DLPORTIO.sys device driver not loaded. Port I/O will have no effect. Has anyone of the WT community had the same problem? An more important is how can I solve the problem? Thanks in aadvance for your help. 73 Hermann, HB9CRV