KMSAuto Net 2015 v1.3.8 portable by FileHippo (2021) is an activator tool designed to bypass Microsoft's activation mechanisms. While the software may seem appealing, its use poses significant risks, including legality concerns, security threats, and system instability. It is essential to prioritize legitimate software activation methods, such as purchasing a valid product key or using official KMS hosts, to ensure the security and stability of your system.