Hauppauge WinTV USB - Manual (Page 52)

it means that one of the WinTV USB driver files in use . You can either ignore the
error, or can can double check to make sure there are no applications running
in the system that might be using the WinTV USB driver. In general, to make
sure the re-installation is done correctly, all applications using the WinTV USB
driver should be stopped before HCWCLEAR is run.
Restarting the driver with HCWRESET
A program is included on the USB Installation CD-ROM which resets the WinTV
USB driver. This program can be run if some program has become “hung up”
and the USB no longer is responding.
The HCWRESET application can be found in the MISC/UTILITY directory:
Simply double click on the HCWRESET.exe icon and the WinTV USB driver will
be reset.
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WinTV-USB
Installation and Reference Manual