They seem to be forever trailing far behind Microsoft's system, though. What version are they targetting now, 2003R2? Windows 7? It would be very interesting t

They seem to be forever trailing far behind Microsoft's system, though. What version are they targetting now, 2003R2? Windows 7? It would be very interesting to see what happened, though, if a bunch of companies / government organizations would pool their resources to fund ReactOS development, if only to put the screws on Microsoft when negotiating new licenses. Like IBM mainframe customers putting Amdahl swag on their desks when negotiating with IBM salespeople to get a discount. If they achieve 100% compatibility, there could also be a significant market for a Windows-compatible system that will support device drivers and software written for old versions of Windows. In my last job, we had a number of customers still running Windows XP on SCADA boxes, because they needed to support some piece of hardware whose vendor had either gone out of business or stopped supporting that hardware, so XP was the last version of Windows with drivers available to support that hardware. One customer in particular still ran MS-DOS on a few machines for similar reasons - the vendor of their SCADA system had gone out of business ... a long time ago, it seems, and they were very reluctant to migrate to something more recent. It was really weird, because as I remember, some of these machines did not run DOS, but some ancient version of QNX running several virtual DOS machines for visualization stuff. (Okay, I'm rambling. I should lay off the coffee.)