File Transfer/folder Share app with c# without need to map ports?

Hi ...

I wonder if anyone can help?

I have been looking around for an application that allows me to File Transfer (not ftp)/ folder share on windows so i can exchange files between 2 users but without the need for mapping ports.

Of course a mini ftp server allows you to do this but this needs port 21 mapping to the mini ftp server which I would like to find an alternative

Can anyone suggest a different alternative that doesn't require mapping ports, emails are out really as teh files may be 300 mb in size...

Then i would like to be able to implement this with c#, so i suppose i need a specific protocol suggestion and how to acheive it in c#

If anybody has any suggests, i would really love to hear them...

Thanks in advance

Who is Participating?
armoghanConnect With a Mentor Commented:
Hi ianinspain,
If you mean to transfer file from one machine to a shared network path..

It is easy :)

Simple System.IO.File.Copy will work

if you are using ASP.NET, then you have to impersonate user smoething liek

ianinspainAuthor Commented:
Thanks,.... but initially i won't have the mapped network drives...

I know i can do \\MachineA\C for example  but how do i provide the username and password etc?

See the impersonation example for ASP.NET in second example
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