read ethernet shiled ip address from SD card

Hello everyone.

Is it possible to read IP address for Ethernet shield from a IP.txt file, which is stored on Micro SD card? I would like to do this dynamically. e.g. I have a C# programm, it can connect to arduino board on serial port, and a can communicate with SD CARD module via Ethernet Shiled i can write/read IP.txt file on SD card, so i can change IP address in that file.

I am sorry for my English