>This problem still exists in 5.4.1!
Yes, it certainly does. The problem is in this file:
App_Code\XML\Handlers\download.vb
This file is not updated/included in the upgrade versions and causes a compilation error due to two non-fully qualified references. You can edit it before upgrading:
Edit: Private Sub RenderToResponseStream(ByVal Response As Web.HttpResponse, ByVal controller As XmlController)
To: Private Sub RenderToResponseStream(ByVal Response As System.Web.HttpResponse, ByVal controller As XmlController)
Edit: Private Sub handleAuthenticateRequest(ByVal context As Web.HttpContext)
To: Private Sub handleAuthenticateRequest(ByVal context As System.Web.HttpContext)
Cheers, Rob.