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Why use @ when declaring strings

I have come across some code that uses @ when declaring a string.  I'm curious, can anyone tell me why you would want to do this?  For example, I've seen:

string finalPath = @"\\agentdev\agyroot\common\tempUpload\NCQ\";

Why not just do:

string finalPath = "\\agentdev\agyroot\common\tempUpload\NCQ\";

2 Solutions
Guy Hengel [angelIII / a3]Billing EngineerCommented:
with @ the \ are not considered to be escape characters
@-quoting  allows for the escape sequences not to be processed,
these are escape sequences:
\' Single quote
\" Double quote
\\ Backslash
\nnn Octal number (nnn)
\0 Null character (really just the octal number zero)
\a Audible bell
\b Backspace
\f Formfeed
\n Newline
\r Carriage return
\t Horizontal tab
\v Vertical tab
\xnnn Hexadecimal number (nnn)

So in order to have this string "\\agentdev\agyroot\common\tempUpload\NCQ\"
one has two options:

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