[Windows Server 2008?]

I tried W2K8 again per the suggestion above, but my TV app just couldn't "see" my PVR-150's input (tuner/composite/S-Video).

Sorry for late reply: you have still to install the Hauppauge Vista drivers

I am using it with GBPVR with no problems.

[Windows Server 2008?]

I can confirm that TV tuners do not work under W2k8.

I got a Hauppauge PVR150 running on Windows Server 2008 standard.

First enable Desktop Experience then copy the following AX files from a Vista installation (windows/system32) to the system32 directory on W2K8.

Cut and paste the commands in a batch file to register them.

regsvr32 /s bdaplgin.ax

regsvr32 /s kstvtune.ax

regsvr32 /s ksxbar.ax

regsvr32 /s Mpeg2Data.ax

regsvr32 /s mpg2splt.ax

regsvr32 /s MSDvbNP.ax

regsvr32 /s MSNP.ax

regsvr32 /s psisrndr.ax

regsvr32 /s VBICodec.ax

regsvr32 /s vbisurf.ax

regsvr32 /s WSTPager.ax