You can download
HUD ECU Hacker version 1.4 now.
I added support for J2534 adapters (tested with a genuine Tactrix OpenPort adapter)
I added Sniff mode which allows to capture data on the K-Line (for example for reverse engineering a scantool)
I added an Echo Test which allows to test any K-Line or RS232 adapter.
Please read the detailed help file which has many updates.