You will have to make the partition visible where the password is stored. Firstly, go to Start > Control Panel and type Administrative Tools. Locate Computer Management > Disk Management. There should be a partition called PQService. Right click it then select Change drive Letter and Paths. Assign a letter and you'll see the partition in My Computer. Open the partition, find the aimdrs.dat file and right click it. Select OPEN with > Notepad. Find "Password=password name”, “Hint=the password hint”. Note down the password and you should be able to unlock it.