(or -mqs switch for command line version). sorting by type, if ' qs' is specified in Parameters field in 'Add to archive' window,.New version of 7-Zip supports two sorting orders: Old version of 7-Zip (before version 15.06) used file sorting 'by type' ('by extension'). New versions of 7-Zip (starting from version 15.06) use another file sorting Why 7z archives created by new version of 7-Zip can be larger than archives created by old version of 7-Zip? Then you can change file associations and some other options. Right-click the icon of 7-Zip File Manager, and then click Run as administrator.
You must run 7-Zip File Manager in administrator mode. How can I set file associations to 7-Zip in Windows 7 and Windows Vista? User FAQ Can I use 7-Zip in a commercial organization?