在vista 中ultravnc 可以使用ctrl+alt+del

先安裝好ultravnc1.5
打開群組原則(本機)
3° Within the console, expand Computer Configuration |
Windows Settings | Security Settings | Local Policies.
4° Click Security Options. The various security options are
displayed in the details pane.
電腦設定\安全設定\本機原則\安全性原則\
5° Scroll through the options and locate Interactive Logon:
Do not require CTRL + ALT + DEL.
互動式登入:不要求按ctrl+alt+del
6° Double click the security option.
7° Select Disabled to require users to press CTRL + ALT + DEL.
8° Click OK.
Run MsConfig from Run option.
2° In System Configuration window, click on the Tools tab.
工具
3° Scroll down and locate “Disable UAP” or “Disable UAC” option item. Click on that line.
選停用-->啟動
4° Click the Launch button.
5° A command prompt window will open and automatically execute and run certain process to disable UAC.
6° Close CMD window when done.
7° Close Msconfig.
8° Restart computer for changes to apply and effective.
To re-enable UAC, simply select “Enable UAP” or “Enable UAC” instead of “Disable UAP” or “Disable UAC”, and then click on Launch button.

在測試ultravnc時就可以用ctrl+alt+del了