title: TFS Build - Powershell or custom activity?
body: <p>I understand I can write my own custom activity (in C#) to execute custom logic during the build process. My understanding is that Powershell can also be used, but I am not sure where it fits in. I do understand Powershell is used for executing command line commands but how and where would I use it to customize the build process?</p>
  
  <p>Thanks</p>