UltraVNC

note: not in the RC206 viewer i have downloaded on May 13h, the version from the same URL 10 days later does it

Thanks a lot "Guest" for pointing to the /noauto switch, we come nearer to the root of the problems!

My tests showed now that:
the -quickoption was broken in v20.3 (as "Auto" is disabled when using the GUI), this was corrected in v20.5.
That is why i just assumed that the command line color modes ...

@Devs: thanks for the 20.6 viewer, where the descriptions of the quick options match the settings.

But:

a) QuickOption gets always set to "1" -> it is not possible to save custom settings as default in the GUI.
Even setting it manually to zero in the options.vnc does not work.
Previously (at least ...

Thanks Michael.
"In the good old days with the RC19 viewer", %temp%\options.vnc wasn't used and the quick options were not saved at all. "/quickoption 3" gave me reliably 256 colors.

I haven't analyzed the complete behaviour of RC20, but maybe the below can help the developers:

Found out that ...

I haven't tried with Win98, but you need to tell us first what exactly you are intending to do.

1. you can't authenticate against users, just groups
2. afaik it is not possible to have local groups on Win9X, so there is no point in trying "Local"
3. if you don't log on to a domain controller there ...

*Please* change the "256 color" option back to 8 bit instead of 6 bit.
Not only that i's a viewer bug, it also is very ugly ;)
An old RC 19 viewer always worked for me with that setting (also with 20.3 server).

Also, all of the following options give me only 16 bit (system menu / connection info ...