The Entertainment Creation Suite 2014 (ECS 2014) Send - To function fails when it is installed in any drive other than C:\.
Sending a file from Maya to Softimage 2014 when ESC 2014 is installed on D:\ drive will open Softimage and Maya will state that it is connected. However, nothing is brought into Softimage from Maya.
We currently have a defect open for this issue and it is being worked on by our development team. A workaround is to export the scene file as FBX and then import the FBX. Unfortunately, this will not activate a "live" connection between the programs but it will still allow you to get files from one program to another.