title: How to access kernel mode memory in user mode application in WinCe7
body: <p>I have written a direct show filter and a video decoder driver for Win CE 7. The filter is loaded in the user mode and the decoder driver is loaded in the kernel mode. The filter need memory to receive the input buffers and it allocates this memory by calling a video decoder driver function. The decoder driver allocates memory and returns its virtual address from kernel space (>2GB) because it is loaded in the kernel mode. But this memory is not accessible for the filter because it is loaded in the user mode.</p>
  
  <p>By considering the above scenario, how can I make the memory allocated by the video decoder driver accessible for the filter?</p>