This step addresses a limitation in Microsoft SharePoint 2010. If you do not complete this step, an error will appear on the pages wfassociation.aspx and processviewer.aspx.
<dependentAssembly>
<assemblyIdentity name="Microsoft.SharePoint.ApplicationPages"
publicKeyToken="71e9bce111e9429c" culture="neutral" />
<bindingRedirect oldVersion="12.0.0.0" newVersion="14.0.0.0" />
</dependentAssembly>