read asymmetric keys from C#

[steven acer]

Hi, i'm trying to use the .NET cryptography API to encrypt XML data
and move XML files between computers.
i'm using asymmetric keys to encrypt the xml tag data with the
receiver's public key, then compute a hash for the whole file and sign
it with my private key.
My problem now lies in finding and reading the keys to make them
available to my program.
i tried creating a certificate with a tool called makecert that comes
with windows 2003 server sdk.
the tool created a certificate file and a private key file but no
public key file, i think i can still copy the public key from the
certificate and save it to a file.

makecert.exe -pe -sv "%HOME%\My Documents\keys\key.pvk" -ss
DataCert.ks -a sha1 -sky exchange -b 01/01/2000 -e 12/31/2040
DataCert.cer

but how do i read the keys from the files into my C# program?

C# seems to provide a way to read a key from an XML string not from a
normal string or a file !
so this won't work
RSACryptoServiceProvider rsaPrivate = new RSACryptoServiceProvider();
rsaPrivate.FromXmlString(rsaPrivKey); // reads keys only from an XML
like syntax

i can though load the file, read the contents into a string and pass
it on to "FromXmlString" but i don't know the required xml syntax.

how would i go on this one?