MSCRM Workflow Stopping, IFD cannot login, Async Service Crashing

Eek, my first post in 50 days. I have been very busy on a new business venture which is very exciting from an offering and technology view. So lots of long nights with not enough time to blog. I will be posting a huge multipart blog on the expierences of that in the near future. Add to that finding out I will be a parent in Jan '09 it's been extra hectic.

Anyway on to the my new favorite issue of MSCRM 4.0, the async service crashing. Should it crash it takes down lots of features, to name some big ones:

• Imports
• Data Duplication
• Workflow
• Logging into a IFD deployment via the forms login

Well this can occur if you have added a new deployment to your MSCRM deployment which contained workflows which were running. These rogue workflows crash async with a lovely message in the eventlog (The entity with ObjectTypeCode = 0 was not found in the MetadataCache.). Well Microsoft have released a hotfix for this issue, which is available at http://support.microsoft.com/kb/950680/en-us