2.2 Message Syntax

Messages exchanged in this protocol allow the client to discover settings in the GPOs that instruct clients to configure their operating system folder redirection subsystems according to administrator directives.

There are two versions of the protocol specified in the following sections:

  • 2.2.1 Folder Redirection Protocol Version Zero Configuration Data

  • 2.2.2 Folder Redirection Protocol Version One Configuration Data

Both versions convey a message as a .ini file. Each file is encoded in UTF-16LE with Byte Order Mark (0xFFFE). The syntax of each file, and thus the syntax of each message, is specified by the Augmented Backus-Naur Form (ABNF) non-terminal IniFile, as specified in [MS-GPOL] section 2.2.4. The following sections use the terminology sections, keys, and values of that document to specify concrete syntax of each message.