SYMPTOM:
When attempting to start the Strategy Intelligence Server 9.4.x or higher, the following error message is received:

Failed to start service. Unexpected error occurred. The service did not respond to the start or control request in a timely fashion

Error occured while starting the server instance.

MSTRExec Error: main() caught MBase::BaseException.
Failed to dynamically load library ;MSTRSvr2_64.dll'. (Server message 305419896)
Unknown error. (Windows API error -529697949)
KB427399