MicroServer! is Free but Limited
MicroServer! is available for strictly personal, non-commercial use at no cost. However, it comes with certain limitations that users should be aware of.
Singular User, Folder
It supports only a single user profile and a single root folder.
Single-Client Connect
It accepts incoming connections from only one client at a time.
Locked Protocols
Protocol and security settings (KEx, HMAC, cryptographic algorithms) cannot be customized.
Dynamic RSA Keys
Each time it's launched, a new RSA host key is generated and used.
