Our interface looks like a small box that needs to be connected to a PC running Win98/Me/XP, only with a free RS232 connector or USB-RS232 adapter. You only need to solder few wires to the board, read back the actual value and then write the new value with no limitations at all. Just one thing: remember that this interface works only with boards made by Siemens VDO featuring a Micronas microcontroller CDC3217 or CDC3297 and 24c32 or 2432 eeprom memory.