In addition to wildcards, policy rules also support
native environment variables, including user- and system-wide variables.
Restriction rules also support the use of multiple environment variables
as long as the environment variable does not expand to another environment
variable. You can use many environment variables that are supported
by the Windows OS but some environment variables, including this
specific set of variables, are not supported:
Environment variables that are private
Recursive environment variables which include other environment
variables in their definition (for example,
a definition of
The following topics describe supported environment variables
in Windows and examples of the target values.