Context In a production environment we started to receive, apparently randomly this error message. We have a complex workflow using InfoPath forms developed in Visual Studio, we applied multiple patches by regac-ing new versions of the workflow assemblies, retaining of course the fully qualified names of the assemblies. Also we use a test environment, where regression testing was done by dedicated test engineers. Shooting in the dark We found this blog http://geek.hubkey.com/2007...