FX009 serial drivers win 2008R2

Hello, I have a problem connecting to a modem FX009 windows server 2009R2 with serial port. I do not see modem in instaled devices. When i try connect modem ower USB, everything is alright. But i need use serial port. I try drivers:
USBDriverInstaller_SL6_V3.8.9.0
USBDriverInstaller_SL80XX_V11.5.0.0
I cannot find drivers for serial port.
Thank for your help.
Pepa

Hi,
what is the response for the AT command AT+WMFM?
Please make sure COM port is opened at your end.

-Alex