MysterX ("Mister X") is a toolkit for building Windows applications within DrScheme or MzScheme using ActiveX and COM components. Dynamic HTML is used for component presentation and event-handling.

MysterX is provided as part of the PLT Scheme distribution for Windows. The download page provides older distributions.

Further information about MysterX:

• MysterX: A Scheme Toolkit for Building Interactive Applications with COM
  Paul Steckler (TOOLS '99)
• Component Support in PLT Scheme

System Requirements:

• Windows (95 and up)
• DrScheme or MzScheme
• Internet Explorer version 4.x or newer (available here)
• Distributed COM, which comes with newer versions of Windows, available as a download for Windows 95/98