|  | From the Release Notes of RTR V3.1C, which is soon-to-be-released:
  - VBX support is being discontinued.  Some existing Visual Basic
    applications may run, but this is not supported.
and,
  - The first call to the RTR API must be rtr_dcl_tx_prc[w].  Reliable
    Transaction Router, Version 3.1C on the PC uses this call to 
    determine that the application is a Version 1.1 application.  One
    cannot, for example, call rtr_error_text() before rtr_dcl_tx_prc[w](),
    since, at that point, RTR has not determined whether the Version 3
    API or the Version 1.1 API is being used.
Now for the good news:
   Visual Basic support using OCX is planned for the V3.1D release
   scheduled for FY97Q4.  If you are interested in becoming a Beta
   Site for this release, we would be happy to work with you to make
   sure that our support meets the needs of your customer's application.
   Please contact me at TALER::WROBEL for details.
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