Control the Internet Explorer Script Debugger

Start/Run/Regedit
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main] Value Name: Disable Script Debugger Data Type: REG_SZ (String Value) Value Data: yes or no. Create a new string value, or modify the existing value, named "Disable Script Debugger" and set it to either "yes" to disable the debugger or "no" to enable it. Restart Internet Explorer for the change to take effect.