| Arg name | Arg value | Description |
| installfolder | path | Installation folder |
| language | language name | Installation language (например ru) |
| copyonly | [0|1] | Only copies files to the installation folder. No other operation performed (по умолчанию 0) |
| allusers | [0|1] | Install for all users on the computer (по умолчанию 1 для администраторов, 0 для пользователей) |
| singleprofile | [0|1] | Make opera use the installation folder to store its profile (по умолчанию 0) |
| setdefaultbrowser | [0|1] | Sets opera as the default browser (по умолчанию 1 для Stable ветки, 0 для Dev/Next) |
| startmenushortcut | [0|1] | Create start menu shortcut (по умолчанию 1) |
| desktopshortcut | [0|1] | Create desktop shortcut (по умолчанию 1) |
| quicklaunchshortcut | [0|1] | Create quick launch shortcut (по умолчанию 0 на Win7 и позже, 1 на предыдущих ОС) |
| pintotaskbar | [0|1] | Pin opera to taskbar (по умолчанию 1 на Win7 и позже, 0 на предыдущих ОС) |
| launchopera | [0|1] | Launch opera at the end of the installation (по умолчанию 1) |
| silent | | Run without UI. |
| runimmediately | | Don't prompt for confirming the installation and start installing at once. |
| version | | Prints the installer version to the standard ouptut then quits |
