Per the DEFAULT_VPNC_SCRIPT set by common.h:49 and used in VpnInfo::Connect() vpninfo.cpp:464, the script to be executed is named "vpnc-script-win.js".

However, the script actually installed is named "vpnc-script.js". As a result, the script cannot be found and is not run, making the tunnel useless.

Possible solutions:

1. Modify DEFAULT_VPNC_SCRIPT to point to "vpnc-script.js".
2. Modify the installer to create a file named "vpnc-script-win.js" instead of "vpnc-script.js".
3. Add a required GUI option for the user to pick a script. (This should probably be used with caution, as if the user launches the GUI with UAC bypassed, they could then execute any code of their choosing with administrative privileges.)

As a work-around, renaming the installed script to "vpnc-script-win.js" works.