C# Send/Read SMS using MT6225(Chine) Cellular

Code works over Windows XP/Sp2 + VS2008, problem is on Windows 7/x64


First you need download/install driver for Windows 7 from [1], after that download c# sample from [2].
for understand code, you need know At commands, that code only send AT command to Comx for interchange information with the cellular phone.
Same usually commands:

AT 
  (if result is OK, then connection is good)
AT+CMGF=1
    (Set message format  0:New/1:Read)
AT+CMGF?
    (Read current setting)
AT+CMGF=?
    (Show list possible values) 
AT+CMGL="ALL"
    (List of all messages)

Classic sequence:
AT+CMGF=1
AT+CMGL="ALL"

References:
[1] MT6225 for W7/x64 Driver http://hotfile.com/dl/42358552/cb0f022/MTK6227_Driver__For_XP__Vista.rar
[2] C# Source Code for test http://www.elguille.info/colabora/NET2006/mauro_melgar_envio_sms.htm
[3] AT Commands http://www.telit.com/module/infopool/download.php?id=542