In short, the Philips SpeechExec Pro & Enterprise software was designed to integrate Dragon NaturallySpeaking version 10.1 and higher and only supports the Professional & Legal editions.
SpeechExec 6.0 (SR1) supports:
Dragon NaturallySpeaking v 10 Service Release 1
Dragon NaturallySpeaking v 10.1
Dragon NaturallySpeaking v11
Supported Editions: DNS Professional and DNS Legal
SpeechExec 7.0 supports:
Dragon NaturallySpeaking v 10.1
Dragon NaturallySpeaking v11
Supported Editions: DNS Professional and DNS Legal
SpeechExec 7.1 supports:
Dragon NaturallySpeaking v 10 Service Release 1
Dragon NaturallySpeaking v 10.1
Dragon NaturallySpeaking v11
Supported Editions: DNS Professional and DNS Legal
Verification Source: Steve Kembel, Philips Technical Support Rep.
Test Date: 10.17.11