SeamlessRDP explorer.exe suppressing KDE taskbar for Windows applications

We are using Rdesktop 1.5 with SeamlessRDP to publish a Windows (W2K3/TS) 
Taskbar (explorer.exe with NoDesktop=1) to all users. With drive mapping, 
sound, printers etc - it really does work phenomenally well.

But!

When using the Windows Taskbar to run Windows applications, these applications 
show up on both the KDE 3.5 taskbar AND the Windows taskbar. I would like to 
prevent these applications from showing up on the KDE taskbar, in order to 
reduce confusion amongst my users (and the resulting support calls).

I have tried running rdesktop with kstart --skiptaskbar, but this only hid the 
initial rdesktop session, not the applications running within it. I have read 
the Rdesktop man page and have searched the web - but to no avail.

I do appreciate that the SeamlessRDP functionality is fairly experimental, and 
that this is probably a limitation with which I will have to live; but if 
anyone does have any ideas, I would love to hear them!

Many thanks,

Chris.

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