Decrypt packet.. help me please

Hi friends..
i have complete my login server for nostale..

now i write a game server..
i created a decrypt packet..
my letters decrypt is righ, but my number decrypt is wrong.

how i can decrypt the numbers? help me, please.

chars wrong:

. - 1 2 3 4 5 6 7 8 9 0 and the space

packet (i write 1234567890 in private chat):

03 8C 8F 94 8B 15 1D 5B B5 19 10 07 B4 96 91 98 8D 9E 8F 8F D4 41 56 78 9A BC D4 E0 FF

8C = 73 = s
8F = 70 = p
94 = 6B = k
8B = ?

8B is 20 (space) but my decrypt don't worked..

packet (i write 1234567891 in private chat):

03 8C 8F 94 8B 15 1D 5B B5 19 10 07 B4 96 91 98 8D 9E 8F 8F D4 41 56 78 9A BC D5 E0 FF

8C = 73 = s
8F = 70 = p
94 = 6B = k
8B = ?

help me please

Which Function the Game uses for Packets?
WSASend or Send?

You should Reverse backwards of the Call so you may land in the Function which encrypts the Packet.
Then Detour this Function.

Thats how i would do it.

i don't understand..
you can say me how i decrypt the packet? :D

i use send function :D

i solved! closed ;)