Normally, EME is totally compatible with other plugins, but some might need some tweaking. Here are some tips:
Email Encoder Bundle
This plugin changes all jquery output needed for EME to show it’s location maps, so don’t use it until the author fixes that behaviour.
The description of the root cause can be found here:
and a setting in cforms that resolves this:
in cformsII => Global Settings => WP Editor button support
activate the option “Fix TinyMCE error”, or disable the cforms button