If you detached it first and have all the files then an attach should work. If it doesn't, you need
to work with MS Support (especially if it is urgent) so they can try to hunt down why it doesn't
work in your particular case.

Solution:

1. Create Database with exact name and mdf-ldf files

2. Stop MSSQLSERVER service, replace created mdf file with original one

3. Start MSSQLSERVER service, the database will be in Suspend mode

4. From Query Analyzer (QA) execute script

use master

go

sp_configure 'allow updates', 1

reconfigure with override

go

5. From QA execute script

update sysdatabases set status= 32768 where name = '<db_name>'

6. Restart MSSQLSERVER service, the database will be in Emergency mode

7. Rebuild Log. From QA execute script

DBCC REBUILD_LOG('<db_name>', '<full name to new log file>'). You got a
message - Warning: The log for database '<db_name>' has been rebuilt.

8. From QA execute script

Use master

go

sp_configure 'allow updates', 0

Go

9. Clear from Enterprise Manager on database properties options tab Restrict
access checkbox

It works

Igor A. Chechet