The CICS_EpiInitialize function initializes the EPI.
All other EPI calls from this application are invalid before this call is
made.
Parameters
Version
The version of the EPI for which this application is coded. This makes
it possible for old applications to remain compatible with future versions
of the EPI. The version described here is CICS_EPI_VERSION_200. See EPI versions,
in CICS Transaction Gateway: Programming Guide, for more information.