How to set the PATH environment variable in Jenkins configuration on Windows?

Question

When I run my build process on Windows Server 2008, it fails with the error message like

Cannot run program "foo": CreateProcess: error=2, The system cannot find the file specified

I've already had a similar issue on Ubuntu Server and resolved it by adding the path to the folder with the binaries installed globally by Composer to the PATH variable in Jenkins config (Manage Jenkins -> Configure System -> Global properties -> Environment variables: name=PATH, value=$PATH:$COMPOSER_HOME/vendor/bin/):

(Due to a permissions moving COMPOSER_HOME outside of the /root directory was also needed to another one, accessible for Jenkins, was also needed.)

Now I tried the same on Windows, but it doesn't work. So, maybe I'm just setting the PATH wrong. What I've tried:

PATH
$PATH:D:pathoCOMPOSER_HOMEvendorin

PATH
$PATH;D:pathoCOMPOSER_HOMEvendorin

PATH
%PATH%D:pathoCOMPOSER_HOMEvendorin

PATH
%PATH%;D:pathoCOMPOSER_HOMEvendorin

How to set the PATH environment variable in Jenkins configs correctly working on Windows?

Answer 1

It needs to be "Path", not "PATH".

Jenkins treats this special variable in a case-sensitive way, and only "Path" is recognized as being the path variable. "PATH" looks to jenkins like a generic environment variable, even on Windows.