title: Which stsadm command do and don't recycled the application pool?
body: <p>I'm trying to figure out if deploying/upgrading solutions and activating features recycles the app pool or interrupts/slows the user's actions in any way.  I need to know if these steps can be performed while there is load on the server, or it is best to do an after-hours deployment.</p>
  
  <p>The specific commands I'm using upgradesolution or displaysolution, addsolution, installfeature and activatefeature, but for the sake of completeness, it would be nice to have a comprehensive list.</p>