InsertObj worked very well... slick. It handles PDF, DOC, TXT, IMG and XML. But it really packed the memory. A 9kb file, inserting a 900kb jpg, jacked up to 53mb. Quite an overload.
There is an option if that is too much for you. "_imageattach" has a relative folder option. If the image is in the same folder as the DWG (and you send the file with the folder), or it is sent with a subfolder that contains the image, the folders can be copied to anywhere and the DWG file can retrieve it.
Rick