Well, I've decided to try and use the L1-USB unit I've had for a couple of years, on a Windows 7 Home Premium 64 bit equipped PC to control my layout. The control unit is LZV100, version 3.6, and I'm assuming that the L1-USB is an earlier version, so I need to update this to V3.6, but it seems that the Lenz website is undergoing some sort of revamp, and apart from being only in German at present (which I don't speak and Google won't translate!) there don't appear to be the links needed to download this update or the L1-USB Server software I'll also need. I'm not familiar with Windows anyway, which doesn't help (I use an iMac), so can anyone help with a link or copy of the required software update for this. I've been able to find the information on how to actually do this update, just need the software, and once 'up and running', I'd like to use JMRI to control the layout, possibly with a conversion of my current points control from switches to PC control, although that might be a long term project. Any helpers please bear in mind that I'm a ''Windows Dumkopf'', so please keep it 'step-by-step' and simple! Keith.