http://blogs.technet.com/b/windowshpc/archive/2009/04/07/how-to-set-environment-variables-on-computes-nodes.aspxFor ISV application you have to set some environments variables on the compute node. You can set this variable by hand, but if you have many nodes it can be long. So, the idea of this post is how can set them attaumaticaly ? Use the HPCS tools : en-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/windowshpc/archive/2009/04/07/how-to-set-environment-variables-on-computes-nodes.aspx#3233717Thu, 30 Apr 2009 23:17:23 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3233717Barndawgie<p>Cluscfg does require administrator access, since it allows you to configure settings that affect all users.</p> <p>If you just want to set environment variables for your application, each task has an EnvironmentVariables property in which you can provide a list of variables which will be set for the life of your task.</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3233717" width="1" height="1">http://blogs.technet.com/b/windowshpc/archive/2009/04/07/how-to-set-environment-variables-on-computes-nodes.aspx#3233690Thu, 30 Apr 2009 22:28:31 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3233690jld61<p>Does cluscfg require Administrator priveledges? &nbsp;I have a application which works fine when run as Administrator on CCS 2003 but doesn't work when run as non-Administrator. The error complains about insufficient permissions.</p><div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3233690" width="1" height="1">