How can I set an environmental variable on a VSO Hosted Build Controller at build time? An ideal solution would be using MSBuild arguments.
Scenario (not necessary to know): I am trying to get an Orleans based Azure Hosted Cloud Service to build and deploy using a VSO Hosted Build Controller. Currently I am hosting my own build controller using TFS however we would like to use the VSO hosted build controller. In order for this to work I have to set the Orleans Environmental Variable to a path within my project on the VSO Hosted Build Controller at build time. We are using a continuous deployment model.