Look into the Environment element in the Wix help.
-----Original Message-----
From: Timothy Madden [mailto:terminato...@gmail.com]
Sent: 23 October 2012 10:51
To: wix-users@lists.sourceforge.net
Subject: [WiX-users] Environment variables for local installs
Hello
I have a script where I want to install a new file name extension
(.exim) and add it to PATHEXT, so cmd.exe can launch files with that
extension by their name only, as commands.
I would also like to offer both "all users" and "current user"
installation for my program.
To my big surprise, on my Windows XP system, after I create the PATHEXT
environment variable for the current user, with the contents:
PATHEXT=.exim
the user automatically loses the contents found in the system variable
PATHEXT (which is usually .COM;.EXE;.BAT;.CMD, plus whatever other languages
(perl, ruby) the user has installed).
Is there a way for a local install (current-user only) to add the new
extension only for the current user, but still use the variable value from
the system variables ?
Do other versions of Windows show this problem ?
Can I use an REG_EXPAND_SZ value in the registry, like:
%PATHEXT%;.exim
in order to merge the PATHEXT variables from both (user and system)
environments ?
Can I find some WiX code that can do the following for user-only
installations:
- on install:
- if the user-local variable PATHEXT does not exit, create it
with the value:
%PATHEXT%;.exim
on install,
- only add ";.exim" to the variable if the variable is already
present and does not include ";.exim"
- on uninstall
- remove ".exim" from the value of the variable
- if the remaining value of the variable is
%PATHEXT%
only, remove the variable
Thank you,
Timothy Madden
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