I have created a sample matrix job with following details to reproduce the problem.

• Configuration Matrix section contains "Slave" axes with couple of windows slave nodes selected. The job should run once on ALL of the configured slave nodes.
• Build section runs an ant file with following content,

  <project default='run'>
    <target name='run'>
      <echo message='${user.home}'/>
    </target>
  </project>
  

On running this job I get user.home printed as %HOMESHARE%

run:
     [echo] %HOMESHARE%

This is creating problem because I want to create a config-distribution task as matrix job which runs on all my windows slaves. The config distribution in my case needs to install (copy) few files to the actual user.home for other (non-matrix) jobs to access.