+
Check plugins at
\Downloads\AppYGS\Remote Connect\...

+
Info:
Last time I checked,
UltraVNC do not start with blank password
VNC can start with blank password

+
Use
Utils\PC Packed (Plugin Creator Packed) to create new plugins,
 old scripts not supported.

Yep, that was it.  Before going the RealVNC route I played around with the various UltraVNC builds.  I got the one under \Downloads\AppsGS\Network\Remote Connect\UltraVNC to work with a blank password by editing the ultravnc.ini to include "AuthRequired=0" and removing the lines "passwd=" and "passwd2=" in case anyone wants to do this.  By the way, what's the difference between AppsGS, AppY and AppYGS?  There seems to be some overlap in the plugins.

Thanks again JohnB175,

Sorry for delay,
 With having low static free time value,
  It take time to feedback forum with sometimes long forum posts,
    and less time to me to code...... public. 

now I update UltraVNC plugin to server (v24 or bigger now)
with "No Password" option 

\Downloads\AppYGS\Network\Remote Connect\UltraVNC

Am I doing something wrong?

no,

It is result of a set of winbuilder bugs.

Following guide and as you are already aware,
Plugin you download is at
AppsGS\Network\Remote Connect\UltraVNC
and if you download, it is now v24
you should already see "No Password" option.

If it does not show "v24" but "v23",
 it is result of one of winbuilder bug of winbuilder bugs,
  workaround is
    click edit button on (over green small play button)
    AppGS\Network\Remote Connect\UltraVNC
   plugin
   than click "source" button at top
you will see

[Main]
....
Version=024

and when you click red X button to go back to builder interface,
     AppGS\Network\Remote Connect\UltraVNC
       will show v24

 

winbuilder is very bugfull, and includes lots of bug workarounds even on plugin code level,
 still things we develop and distribute on projects here works as intended.