Field              Field  Off Leng         Description
    Name               Type   set

   IEWBTXT                              Binder Text buffer, Version 1
   TXTH_BUFFER_ID      Char     0   8   Buffer identifier "IEWBTXT"
   TXTH_BUFFER_LENG    Binary   8   4   Length of the buffer,
                                           including the header
   TXTH_VERSION        Binary  12   1   Version identifier
   *** RESERVED ***    Binary  13   3   Reserved, must be zeros
   TXTH_ENTRY_LENG     Binary  16   4   Length of entries (always 1)
   TXTH_ENTRY_COUNT    Binary  20   4   Number of entries (bytes) in the
                                           buffer
   *** RESERVED ***    Binary  24   8   Reserved, initialize to zeros
   TXT_ARRAY           Undef.  32  var  Program Text (length varies from
                                           1 to 2**31-1 bytes, depending
                                            on value in TXTH_ENTRY_COUNT)