Refresh Environment

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When deploying a product with Setup Factory, sometimes you wish to add the installation path to the PATH environment variable. Although you can do that pretty easily by adding the new information to the registry, these changes do not take effect until the user logs into his Windows account again. This utility attempts to overcome this limitation.

Here is a short sample how you can use this utility, normally executed during your On Post Install event:

 
envKey = "System\\CurrentControlSet\\Control\\Session Manager\\Environment";
path = Registry.GetValue(HKEY_LOCAL_MACHINE, envKey, "Path", false);
 
if (String.Find(path, SessionVar.Expand("%AppFolder%"), 1, false) == -1) then
    -- %AppFolder% not found in the current path, so add it now
    path = path .. ";" .. SessionVar.Expand("%AppFolder%");
    -- update registry
    Registry.SetValue(HKEY_LOCAL_MACHINE, envKey, "Path", path, REG_EXPAND_SZ)
    SetupData.WriteToLogFile("Info\tNew Path=" .. path .. "\r\n", true);
    -- refresh the environment (execute primer file)
    File.Run(SessionVar.Expand("%TempLaunchFolder%\\RefreshEnvironment.exe"), "", "",
        SW_MINIMIZE, true);
    error = Application.GetLastError();
    if (error ~= 0) then
        SetupData.WriteToLogFile("Error\tCould not execute utility!\r\n", true);
    end
end 

You would typically add the utility to the Primer Files of your project, so it would be deleted automatically when the installer finished.

Download

Click to downloadFile size: 15 KB
Updated: September 2010

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Comments 

 
# Toma 2012-11-09 16:06
Thanks for this, i almost ripped the rest of my already thin hair before I found this solution.
 

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