How to crack password Administrator windows 2003 standard edition with Domain Controller?

I lost my password to log in Win2K. I try to use more software: (Active@ Changer Password), KonBoot, Window Admin Hack, L0phCrack,...but they can't crack this password...I think those softwares can crack local password, can't crack domain password. Another way, I try to use crackkey soft to success, but it log in in safemode enviroment. In safemode enviroment, I changed a new password for Administrator's account. After, I restart my computer, I log in with a new password...but it is not successful, it's wrong password, I tried many times but not success. Who can help me to solve this problem? Thanks.
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Rob StoneCommented:
Do you or another user have a Domain Admin account? If so, reset the password with that account.
When logged in, try to make another administrator account instread of changing the password of the original administrator.
The password that you change from safe mode is a local account. The system does not log into that in normal operation. try using the Offline NT Password editor, please follow the instructions carefully.
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kietlaoquaiAuthor Commented:
When I logged in safemode...and created another account, it's not success (I logged with a new's not accepted). I used Offline NT Password editor, it's not success. What's another way?
kietlaoquaiAuthor Commented:
That boot CD, I downded this link
After you download, you rename "" to "crackkey.iso" and burn it into CD. Through install, if it requests password, you type "nhatnghe" (this is a password to use this CD). This CD is appropriately licensed software.

Another way, I followed guide this link 
But follow this guide, I don't fix my problem. Can you help me? I

kietlaoquaiAuthor Commented:
OK...I fixed my problem. I searched this guide, I just run script and it fixed everything...that's easy.
Thanks for your support.

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Windows Server 2003

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