I have scripted a PowerShell script to run an SSRS report that has been deployed to the ReportServer. One of the parameters for that report will allow multiple values, i.e., StartYear = "2011,2012". The problem I am having is that I get an error when executing the PS script that says the parameter does not allow more than one value. I created this report in SQL Server BIDS and the parameter is an integer with allow multiple values checked, and a query that produces the Available values