version 15, 2015/03/21

- selectable disk image file
- fixed incorrectly calculated number of available sectors
- added command $D0 (number of free clusters) 


version 14, 2010/12/25

- the Connected and Transfer states indicated with TShape components


version 13, 2010/12/03

- paintings are handled in an OnPaint event
- all file names converted to lower case


version 12, 2010/01/05

- fixed renaming of disk files
- changed program name to md100srv.exe to avoid name conflict with the
  MD100.EXE utility for manipulating the floppy disk images
