How can i use the '&' symbole in a GET parameter [duplicate]

This question already has an answer here:

• ASP.Net URLEncode Ampersand for use in Query String 6 answers

I need to create GET parameters containing '&'s without creating new parameters for each '&'s.

For instance the following URL :

http://ift.tt/1UWan61

will give me :

action = 'redirect'
url = 'url=http://ift.tt/234ii2B'
ref = 'aaa'

But I want :

action = 'redirect'
url = 'url=http://ift.tt/1UWan63'

It's in the context of a c#.net application and i'd rather not use POST parameters.

Is it even possible ?

Thanks