If you have got the Profile Import working in SP2010, then you probably will wan’t to EXCLUDE disabled user accounts from the import.
Here is how:
Go to the “Synchronization Connections” page of the User Profile Service Application.
Click on your connection, and select “Edit Connection Filters”
You can add USER filters and GROUP filters, we want to add a User filter here.
Choose the attribute “userAccountControl”
Choose the operator “Bit on equals”
Choose as filter (value) 2
Click on Add
And Press on OK
Your next import will now exclude Disabled User Accounts.