Winet 6.52 released

Update notes:

1. An old or invalid UpdateCode.txt file won’t result in displaying an error that
an invalid code has been entered.
2. Automatic license updates can now be done from secure https web server.
3270:
3. Natural File Transfer upload: We fixed a bug and improved the speed substantially.
4. A problem with an incomplete Query reply response resulting in a blank screen
when connecting, has been fixed.
5. Inet3270 can allocate LUs from a shared pool file. Contact us for details.