Outlook does not show new CRM 2011 Custom Entity icons

This is a further follow up post to my recent article on How to add icons to custom entities in CRM 2011.

I have occasionally found that updated custom entity icons did not appear in the Outlook client as expected. This may or may not have been fixed in more recent rollups; I have not noticed it for a while but then I have not customised many of my own live CRM instance icons for a while either (I don’t tend to connect my Outlook client to customer’s systems when working on them and that’s where I am more likely to create new entities).

The cause and the fix are relatively simple – for obvious performance reasons, the icons are cached locally so you just need to clear them out.
Read on to find out how to clear the icon cache »