All applications
- /quick - quick launch, skip Startup Configuration
- /quiet - quiet launch, no splash screen and skip Startup Configuration
- /delay:time - delayed launch, specified in milliseconds
- /config - Startup Configuration only
- /restoreopt:filename - restore settings from the specified backup (see Manage Settings...)
- /asio - use ASIO audio input devices instead of DirectX ones
Composer
- filename - open an xcomp or xshad file
- /frame:width,height - set default rendering Frame Size (see Preferences / Rendering)
- /fps:value - set rendering frames per second (see Preferences / Rendering)
- /server - enables controlling Composer via HTTP messages (see Enable HTTP Control)
- /watch - use Watchdog
- /pilot - only shows Control Boards
- /dshowlegacy - replaces the Microsoft Media Foundation multimedia framework pipeline with the legacy Microsoft DirectShow multimedia framework
Installer
- filename - open an xpack file
- /install - install the package specified in the filename, no confirmations asked, quits afterward
- /uninstall - uninstall the package specified in the filename, no confirmations asked, quits afterward