I have a plugin that works on different boxes on different domains. However, I have it registered on one particular box that continues to throw this error every time the applicable entity event is triggered. The caveat? The code isn't even being executed. IE: The IPlugin.Execute() interface implementation is never reached. I just get the CRM dialog indicating "Invalid URI: The hostname could not be parsed." every time.
I've confirmed the code isn't being entered as I've attached Visual Studio to the applicable CRM processes. On the other boxes I can step in and through with no issues. This is how I determined the code isn't being reached.
The plugin has been registered in the CRM the same as it is on the other machines. I've placed it underneath a particular Solution file and published (even though that step isn't necessary).
Thoughts?