I am trying to import the Orchard package build with clicktobuild.cmd using the deploy menu item through IIS Manager.
After the wizard displays the steps in the installation, I receive the following error: 'enable32BitAppOnWin64' is not a valid attribute of the deployment object 'createApp'.
The problem was already discussed at http://orchard.codeplex.com/discussions/243011/
and changing the manifest.xml to
<iisapp path="Orchard" managedRuntimeVersion="v4.0" enable32BitAppOnWin64="False" managedPipelineMode="Integrated" />
solves the problem.