Help: Sierra 5725, AT Command Error

[0cean]

Hi:
I am running Sierra 5725 on Windows 7.

When I tried to run DC Unlocker 1.00.0467 (the latest one) in admin mode

I got error log as below:

------------------------------------------------------------
DC - Unlocker 2 Client 1.00.0467

Detecting card :

selection :
manufacturer - SierraWireless
model - Auto detect

AT command error

And I got different error under Win XP SP3 compatible mode--------------------------------------------------------------

DC - Unlocker 2 Client 1.00.0467

Detecting card :

selection :
manufacturer - SierraWireless
model - Auto detect

unknown error (118)

[Vincentas]

This modem is not supported by dc-unlocker software.