Thank you Rudi and all that have helped contribute to this new version.
1.3.4.1 is working well for me in my reverse connection application ...so far
The following may be helpful to some users.
As Rudi mentioned..."Default behavior for reverse is to ask for authentication." <--more secure
In the winvnc server's ultravnc.ini this new default setting looks like this.
ReverseAuthRequired=1
CPC