Hi, 
I have 3 DLink camera's. 
2 x DCS-2120 
1 x DCS-5230 
I have installed D-viewcam 1.4 and D-viewcam 3.11 on Windows 7 64bits. 
Because I couldn't add the DCS 5230 to the D-Viewcam 1.4 version I installed a new version of this cam software , D-viewcam 3.11. 
Here I installed all 3 camera's and that works. 
There is only one problem. The image (in both the live view and playback) of the DCS2120 looks very bad when there is a lot of motion. the image is blurred with a lot of blocks. When i look at the livestream via the browser or D-viewcam 1.4 at the same time the Image looks perfect. 
Hopefully someone knows a solutions for the poor image. I tried all settings. 
Another solution for me would be a possibility to add the DCS5230 to the Dviewcam 1.4 version. 
Thanks a lot