SQL Relay has classically run on Unix and Linux but not Windows. A few years ago I got the C/C++ API working on Windows and added a C# API and .NET data provider. I got a few of the command-line programs working too, but that was about all you could do on Windows for quite a while. A few months ago when I got the Perl, Python and PHP API's working on Windows along with the rest of the command line clients, but still, only the client side software worked.
Since then I've made quite a bit of progress getting the server working too. And tonight things really started to come together...
That's the SQL Relay server running on Windows, connected to a database running on Linux, accessed by sqlrsh, also running on Windows.
And it can be accessed remotely too.
That's the same SQL Relay server running on Windows, accessed by sqlrsh running in a separate Linux VM.
There are a number of things that don't work yet like sqlr-stop and various plugins, and there are several things that just haven't been tested yet, but the big things are coming along nicely. I expect to be able to announce preliminary support for the SQL Relay server software on Windows in the next release.