HTTP Error 500.19 – Internal Server Error

Hi Experts,
I have installed TV Tuner Card on my machine running with Windows XP.
One of my friends is using it smoothly. However, on my machine I received several error messages regarding this installation.
Have a look at the screenshots below. What do they mean?
Have you any idea?
Please help me to solve the problem.
Thanks in advance.

ReceiveFile Failed. 500 500 Invalid PORT Command result=2

HTTP Error 500.19 – Internal Server Error
The requested page cannot accessed because the related configuration data for the page is invalid.
