VNC support for alt-tab

[bansidhar.deshpande@infineon.com]

Hello all,

I am using VNC Viewer (Windows 2k) - VNC Server (Linux) combination. I
am missing the support of alt-tab switching between the windows. If I
press alt-tab windows catches this event. 

VNC viewer documentation says it does not support few ctrl, alt key
combinations as windows handles them, but doesn't suggest any solution. 
Please guide me if there is any hidden key behind this. 

--Bansidhar