Hi, 

I didn't find a way to post this comment directly at the package page so i will lgive it a try here.

When i install the package i get following error

Could not load file or assembly 'LMUmbCampaignMonitor' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded.

In the comments of the package is says that it is compatible with 4.5.x schemas and i am using umbraco 4.5.2

thnx for the help