You can trace ip easily jus follow instruction
this is very simplz trick and you can know other pc's ip adress.....
Note: this trick only 4 basic Knowledge.
Step 1: download this script in your hard deive
or click here for download script
Step 2: Download and extract rar files.
Step 3: create a free account in http://www.110mb.com
Step 4: upload 2 files in your 110mb.com which you download in 1st step and set permission 777....
thats all send ip url to ur victom when he/she will open it....then his/her ip auto upload in ip text file.....
Enjoy...