A HINFO-record specifies the host / server's type of CPU and operating system.
This information can be used by application protocols such as FTP, which use special procedures when communicating with computers of a known CPU and operating system type.
Standard CPU and operating system types are defined in RFC1700 (Page 206 / 214).
The standard for a Windows PC is "INTEL-386" / "WIN32".
To create a new HINFO-record, right-click a zone in the left list in the DNS Records window, and select "Other new record" from the pop-up menu.
This record type is defined in RFC1035.