how to set webapplication.RightsMask via PowerShell

Question

trying to change one of the rights assigned in RightsMask with Powershell on a SharePoint 2010 server. $webApp=get-spwebapplication http://myWeb $webApp.RightsMask

I want to be able to enable/disable flag: [Microsoft.SharePoint.SPBasePermissions]::ViewListItems but I can't figure out to how change just that one value - this is basically a bitmask field

Any Suggestions? Thanks

Answer 1

Try

$webApp.RightsMask = $webApp.RightsMask -bor [Microsoft.SharePoint.SPBasePermissions]::ViewListItems;