SAMdiskHelper is a helper Windows service, providing access to BDOS (Atom and Trinity) and Pro-DOS format disks from normal (non-elevated) applications.

Supported by SAMdisk v3.8.3 (or later) and SimCoupe builds from May 2014. SAMdisk and SimCoupe builds from May 2016 require at least SAMdiskHelper v1.3 to work correctly.


Version 1.3, last updated 17th May 2016 [changelog]

SAMdiskHelper_1.3.exe — requires Windows Vista or later.


  1. Download and install using link above.
  2. Use SAMdisk / SimCoupe as normal.

SAMdiskHelper will be used automatically if disks can't be opened directly.