How to allow users acces to shared folder remotely?

Hey guys

I would like to have a friend of mine who lives in a different part of the country, be able to access a shared folder on my pc,how do i go about doing this? I use windows 7 ultimate 64 bit

I have to be able to chose exactly which users would be allowed to the shared folder,and what permissions they have,how do i do this? How can i check the incoming request is my friend,and configure my firewall (Eset smart security 4) to allow traffic?

Do i need to configure my router (Linksys E2000) for this also, if so,how do i do this? My router has ALL wifi settings disabled,as i do not use wifi,so connection will be made wired over the internet

Hope anyone can help me,as i am completly lost as to how i go about this.

Thank you

Hi

I would like to know that as well

Thanks

I want that user to have access to a shard folder only.If I use a TeamViewer he will be able to access other folders and files, which I don't that to happen.

I haven't used dropbox

I will give it a try and see how it goes.

Appreciate your help

Why would i need a 3rd party program to do this? Isn´t the functionality already in windows 7? I don´t trust 3rd party programs not to snoop in what i am sharing wth who.

Also, i won´t pay for a program that limits my traffic or amount of data.

What i need is access to ALL my music,movies and photos from my windows 7 JBOD server from anyother pc or networked media player i designate (specific user)

Dropbox i useless here