I have upgraded and recompiled the DSK creation and modification utility DskTool originally created by Ricardo Bittencourt.
Excellent utility, but last version was published in 1998 and the Windows version was only compiled for 16-bit Windows. Fine until the emergence of 64 bit Windows (now my primary development environment). Now while virtual machines are fun and all, it would be nice for such a tool just run in a current environment.
So I went through the code, fixed a memory leak and swapped it over to use the 32 bit Windows API.
You can download it from www.electricadventures.net/downloads/DskTool.1.12.zip.
The ZIP file contains the new executable and source files. If your machine does not already contain the VC10 runtime libraries you will need to download a copy.
Also spent the weekend looking at various C cross compilers along with the Eclipse IDE. I settled on Z88dk, not only easier to setup, but has some decent MSX libraries already. Plus the web site is excellent!