John,
if you need a cheap and reliable 3270 Emulation then give Vista tn3270 a
try.
see www.tombrennansoftware.com
Since V1.26 it supports secure connections over a SSL connection - I
guess this is what you need.
The pros and cons of (all) 3270 emulations have been discussed here
before. What I like best on Vista is the really clear font, the support
of the author and the z/OS Utility VSTEXEC, which can be used to start
Vista tn3270 Macros from your TSO Session...
Bye,
Michael
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