Does the WebReboot require any software to be installed on the connected servers?
No, the WebReboot is a hardware product that does not require a software installation on your servers, and will work with any server hardware, and any operating system. Client computers accessing the WebReboot 3.0, however, will of course need a web browser that supports Java 1.4.2. Client computers accessing the WebReboot Enterprise will only need a modern web browser with JavaScript enabled.