Unfortunately your solution gives same result. This command stands for "archive" or "add. So 7-Zip extracts files from archive to temp folder and then 7-Zip notifies Windows Explorer about paths of these temp files.
The "command" is the main verb. Example PPMd command line 7z a -t7z archive. The modes in 7-Zip automatically use many different settings.
This is from the manual. This is the example from the 7-Zip help file.