With powershell, it is very easy to unlock a active directory user account. It is as easy as executing below command.
Unlock-qaduser myuser1
Only thing is, you need to have Quest Powershell cmdlets for active directory installed in your computer.
Similarly you can perform some more quick actions with Quest active directory cmdlets
Query all disabled accounts:
Get-QADuser -disabled
Query all locked accounts:
Get-QADUser -locked
Hope this helps…