Intuitive GUI for editing parameters and options of Robocopy.

Features:

• Use a property grid to present all parameters and options.
• Provide a text editor to edit command line directly, and any change to the arguments in the text may be reflected back to the property grid, and vice-versa.
• Display immediate hints to an option highlighted in the property grid or in the text editor.
• Test-run the robocopy command line without opening Windows' command prompt.
• Support rules of inclusion, exclusion and combination among options as defined by Robocopy's user manual.