Adding Active Directory Users in WSS 3.0 Site using FBA

I was running into an issue while adding Active Directory users into WSS site configured as FBA. I was getting following error:

"No Exact Match found".

After digging into this issue and searching on the internet, I came across the following forum, which is talking about exactly the same issue:

http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/c2da032b-2346-4068-8936-6dbf4411eac1

I double checked and realized that site is running under application pool identity (user which was not a domain user, user was pointing to local group because site was running on the server which was not part of domain controller before and it had been added to domain controller later on).

So after performing the following operations I could able to add active directory users in wss site which is configured as FBA:

1- Give the permission on the content database to domain\user
2- Go to Central Admin --> Operations --> Service Accounts
3- Select Windows Service from the dropdown
4- Select Windows SharePoint Services Web Application (under web service)
5- Select Application Pool Account
6- Enter the domain\user and password

Note:- If you will change application pool identity from IIS manager only it will not work properly so you have to change it through Central Admin as mentioned above.

Hoping this will help someone !!!