Registry Cleaner Geeks

Philips TV software and other capture card applications that use the Philips SAA713x chipset

C:\ Windows\ System32\

Yes

The Philips capture card driver for Windows 98 and 2000 is a kernel mode driver that executes a Kernel Streaming filter with output pins for video preview, video capture and VBI, audio, optional connections for other on-board devices as child drivers, and a crossbar for input source selection. The capture card driver is used as a stream class mini-driver that also exposes the external interfaces to assist the 34api.dll module. A 32-bit capture card driver that is based on the SAA713x chipset user-mode interface, or the 34api.dll module, controls most of the video functionality and the implementation of the user-mode audio driver.

The Windows 32-bit sub-system uses a client-server architecture where the core or the Graphics Engine and the graphics device drivers execute in the “server process” (or the user-mode process) that was distinct from the “client process” (the user-mode application process). The 34api.dll module serves as the proxy layer that allows for communication between a device driver executable in a user mode and the graphics engine executing in a kernel mode. Since the Graphics Engine cannot call the user-mode graphics driver functions directly, it calls the 34api.dll module, which summarizes the user-mode graphics driver and makes the driver appear to the graphics engine as if it were a normal kernel-mode graphics driver.

The 34api.dll module, through a proxy interface, transfers the device driver functionality to the user-mode. The common 34api.dll module can be used on all Windows operating systems in the same way as the proxy interface adapts to the different kernel-mode implementations.

Many other TV capture card manufacturers include the 34api.dll module in their WDM device driver package as this library contains most classes and functions needed to manipulate a capture card.