Well there is No Visa Called Free Visa all Visas are employed Visa, the difference is only that the sponsor do allow you to work upon your choice for that you have to obtain a NOC letter from Existing sponsor which should be endorsed by Immigration Dept. its a permit to work in another sposorship which is valid for six month and than later on you have choice to change sponsorship according to your choice but the new visa does not allow you to change sponsorship until you finishes the first year.....Regards....

- Naeem -