HDDVD PC player + spdif out to trueHD receiver = trueHD 7.1 audio?

I know that if i had an HD player (consumer model).. connected to a
TrueHD capable receiver (HDMI typically here).. that HD DVD titles
that were TrueHD/7.1 would come through fine..

But what about on a PC.. a PC with an HD DVD player and the PC outputs
via SPDIF (coax)?

Currently, if i do this with PowerDVD and Vista x86 (x64 doesnt seem
to work with software players on Dolby Digital).. if i do this with
this combo now.. I get dolby digtial 5.1...

So If i use this TrueHD version of PowerDVD, with an HD player and
coax out.. will i get TrueHD 7.1? Has anyone tried.. curious as i'm
looking to use the PC as an all in one solution for movies..

Cheers