Changes

[http://en.wikipedia.org/wiki/Environment_variable#Microsoft_Windows Wikipedia]

or the more complete list at

Similarly, please also use %PACKAGES% to specify the WPKG package installation directory on the server. Silent installer scripts will then work for everyone's setup, rather than only those whose directory structure matches your own.

This environment variable is defined in <code>wpkg-start.bat</code> (which recommends %PACKAGES% but wrongly makes an example using %SOFTWARE).