Mislabeled VNC in Winapp.ini

[VNCViewer 3]LangSecRef=3024Default=TrueDetect=HKCU\Software\ORL\VNCviewerRegKey1=HKCU\Software\ORL\VNCviewer\MRU

Should be:

[ultraVNC]LangSecRef=3024Default=TrueDetect=HKCU\Software\ORL\VNCviewerRegKey1=HKCU\Software\ORL\VNCviewer\MRU