versionmgr string (15) contains on return the version number of the
installed Speech Manager software.
versionpck string (15) contains on return the version number of the
installed Speech Pack external package.
Returns the versions of the Speech Manager software and the Speech Pack external package.
If the Speech Manager is not installed the ”versionmgr“ parameter will return an empty string, regardless of the fact if the other Speech Pack functions are available or not.