If you want to use lharc, the first thing to do is to configure Arcgsh to work together with that lharc-Variant you want to use. Arcgsh has to know which lharc commands and options are to be used to achieve certain actions. For these parameters differ from lharc to lharc Arcgsh cannot provide suitable default values.
However, Arcgsh knows about several lharcs and has appropriate configuration data already built in. On the right hand side of the lharc dialog box — it is displayed when you select the menu entry ``LHarc ...'' — you can see those lharcs Arcgsh already knows. If ``your'' lharc is among them, select the appropriate button, and Arcgsh will adopt itself to it. Using ``Save configuration'' from the ``Configuration'' menu you can store the chosen configuration in Arcgshs configurations file.
Depend on which lharc configuration has been chosen only a part of all commands and options can be selected. Those that are not to be selected are greyed out.