files are plain ASCII text files that follow a consistent organization and syntax. The file consists of section headers—a section header is a word enclosed in square brackets on a line by itself—followed by keys and values. Each key begins on a new line,

files are plain ASCII text files that follow a consistent organization and syntax. The
file consists of section headers—a section header is a word enclosed in square brackets on a
line by itself—followed by keys and values. Each key begins on a new line, and it’s usually followed
by an equal sign and a value for the key. If a value contains any spaces, it must be
enclosed in quotation marks. You can include comments in an answer file by putting a semicolon
at the beginning of each comment line. The Windows XP Preinstallation Reference
includes three sample Unattend.txt files that you can examine in more detail.