for UltraVNC 1.0.6 and higher
these 2 files are required %programfiles%\UltraVNC and UAC must be enabled.
Vista/7/2008/2008R2 32bit (example) I won't have the 64bit
%programfiles% is variable pointing to "Program Files" for english OS
%programfiles% is variable pointing to "Programmes" for french OS
uvnc_service must be running as service system and automatic