2.1.10 c-os

This field MUST specify the client's operating system.<2>

The syntax of the c-os field is defined as follows.

 OSname= "Windows_98" | "Windows_ME" | "Windows_NT"
   | "Windows_2000" | "Windows_XP" | "Windows"
   | "Windows_Server 2003" 
 c-os = OSname | 1*64VCHAR

Example:

  
 Windows