working out an encryption method of msn messenger.

This is probably impossible to work out an encryption method around
an already written encryption method especially since the encryption method was written my microsoft but hey I thought I would askk anyway.

I am trying to build my own client for microsoft Messenger, but the problem is when you send the password to the server it is encrypted with a key which is sent to the client just before it has to send the password, the data which has the key in it is:

USR 6 MD5 S 966859855.1425786544

where the key is: 966859855.1425786544

and when the password is the letter a the data to be sent to the server is:

USR 7 MD5 S 713bcec36cce6e86404b2e302ee9a648

where 713bcec36cce6e86404b2e302ee9a648 is the encrypted password, some other example are:

ab - USR 7 MD5 S f5814add7c41588e0de193b1b2d561e5

abc - USR 7 MD5 S 55eb4d6a295d1ac9d798d9a5f43601b0

abcd - USR 7 MD5 S 2809772475ac9f0a7220a7b36c899c5b

abcde - USR 7 MD5 S 959954d442df5bbc2c1971946e7109e2

abcdef - USR 7 MD5 S 7b4d2b1b79542d234053802950f6581b

abcdefg - USR 7 MD5 S acdae445edf5a1b53296c247b9a05cbc

g - USR 7 MD5 S 558a29a4149a18529fc9fb0172a82604

h - USR 7 MD5 S 0138939145096616326a7a6a20eac835

i - USR 7 MD5 S c58630d429937ccf88aed0fc285d24a5

j - USR 7 MD5 S a5c5c10153429075f9ce10114f70b9aa

k - USR 7 MD5 S 2a7a2e169797323bfb93327dcf5e94f2

l - USR 7 MD5 S 28e5000688a9ec4623310311dcd2eae7

m - USR 7 MD5 S bc1bd82f70d795a188ec2215e1e9562e

n - USR 7 MD5 S 6c2a5b14a1f8a13988563107e2a05386

o - USR 7 MD5 S f60b3182c5859c3aeecaad3817c7911d

p - USR 7 MD5 S bbbdf4fd097b92bd590aa2b5e58735f7

q - USR 7 MD5 S 19b44579629fe244b1b10cd842d6940b

r - USR 7 MD5 S 00043ff5b9c144ed702b6eb45462c150

s - USR 7 MD5 S 45d1130f81166a88c11751cbe2b19c9a

t - USR 7 MD5 S 0adc806efeb77744d891c8049d91b0eb

u - USR 7 MD5 S 0f40d8b769d474fcf7bb5125b03bc73b

v - USR 7 MD5 S cbebc955fd91f52a892837643dc976b3

w - USR 7 MD5 S 73be31577eaf89e2669c5ac1e0ea08a5

x - USR 7 MD5 S 0f80bf4286fa96f95bdb4254ccd46782

y - USR 7 MD5 S 21d63ab8bd4285149b93a95d7c560621

z - USR 7 MD5 S 502b2f965cb063077a70a4f70023cd8d

I can login fine when I know the encrypted password (which I have to run msn messenger and sockspy it first to find my encrypted password) except I still gotta work out the instant messaging part of it.

this is probably impossible to work out but hey thought I'd ask incase anyone was extremely intelligent in the art of unencryption or something.

anyways I'd greatly appreciate any help on this, if anyone can.

seeing as ^^ that is probably impossible, I was looking into the .dll files included with msn messenger, and one was called n2pcli.dll and it has a function in it called, Np2Login but I don't know how to declare this, function as the program I was using to look at a .dll file just tells me the function name not information like the variable in the function, this function maybe the answer to my problem the chances are it isn't but it may help in some way, so does anyone know of a program that will show you the function and the variables you need to provide to call on this function or even better shows you exactly how to declare it?

thanx for any help.

Hey any idea how to get the MSN password .. I guess its stored in the registry and its in a Hexadecimal format .. So how to convert that back in to a word.. If any other way of retrieving the password please let me know ... Any help would definitely be appreciated. I know where its stored in the registry if some one can help me in getting the password wil be a great help for me.Its stored in the registry only if the user has selected the save my password checkbox.

Please let me know...

Cheers
Ashish.