I will Google for more explanation of the requirments. Thank you.

>Check requirements for creating Filtered indexes. The problem is not with the script you posted but with the setiing for the current session. SET ANSI_PADDING in particular
>
>
>>I added the following index to the database:
>>
>>

>>CREATE UNIQUE NONCLUSTERED INDEX [ix_mmreqes_web_user] ON [dbo].[mmreqes] 
>>(
>>	[web_user] ASC
>>)
>>WHERE ([web_user]<>'')
>>WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, SORT_IN_TEMPDB = OFF, 
>IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
>>

>>
>>Then I Generate Script of the database (in order to create a new one with the same structure).
>>
>>But when I run the newly generated script against a newly created database, I get this error:
>>
>>

>>Msg 1934, Level 16, State 1, Line 1
>>CREATE INDEX failed because the following SET options have incorrect settings: 'ANSI_PADDING'. Verify that SET options are correct 
>>for use with indexed views and/or indexes on computed columns and/or filtered indexes and/or query notifications and/or XML data type 
>>methods and/or spatial index operations.
>>

>>
>>What is wrong with my Index script that it causes the error?
>>
>>By the way, if I Generate the Script without this index and then add this index to the newly created database, no error.
>>
>>TIA.