Tool is kick started as an aid to non-tech savvy to help them change IP address without touching power button of modem.
ipconfig/release
ipconfig/renew
Are the 2 primary command on which the total tool is built sadly before testing worthiness. The test failed on Wifi modem, whereas it passed on Ethernet modem with single PC connected.
The use of choice commmand made it to not run on Win 2000 and Win Xp. Ref. http://en.wikipedia.org/wiki/Choice_(command)
The code is not release on code as its not working as expected though for study and debug purpose its posted in wiki pages.
You can download the Original and Universal .bat files from Files tab.
Alternatively, Get the Original code here (with choice) - https://sourceforge.net/p/newip/wiki/Original%20Code/ . Get Universal code here - https://sourceforge.net/p/newip/wiki/Universal%20Code/ . You just got to copy paste the codes from wiki and save it as .bat file. You can run it from there and test. Please get back to be with test we can debug this, some PC where I have tested has positive results.