Switch -R- - disable recursion
Disable the subfolder recursion.
Even without -r switch WinRAR can enable the recursion automatically in some situations. Switch -r- prohibits it.
If you specify a folder name when archiving and if such name does not include wildcards, by default WinRAR adds the folder contents even if switch -r is not specified. Also WinRAR automatically enables the recursion if disk root without wildcards is specified as a file mask. Switch -r- disables such behavior.
WinRAR a -r- arc dirname
command will add only the empty 'dirname' folder and ignore its contents. Following command:
WinRAR a -r- arc c:\
will compress contents of root c: folder only and will not recurse into subfolders.