After extraction, there's likely an executable file. The user just needs to run that. But KMSAuto might offer options like activating Windows or Office. The portable version should have all necessary components included.
First, the user needs to download the file. They might have to find a reliable source for KMSAuto Net 2015 v140. Since it's an older version, maybe there's a ZIP package. Then, they extract it to a location, like a USB drive. They might need 7-Zip or similar to extract the archive. kmsauto net 2015 v140 portable install
Also, note that Microsoft provides volume activation methods for legitimate use. Users with a valid VLK can set up a KMS server and activate their own systems, which is the correct approach. After extraction, there's likely an executable file