Fitch Affirms 29 Classes from 1 Wells Fargo RMBS Transaction

Fitch Ratings has affirmed the following Wells Fargo mortgage pass-through certificates, and removed on from Rating Watch:

Wells Fargo Mortgage Backed Securities 2003-17 Trust

--Class I-A-PO at 'AAA';

--Class I-A-1 at 'AAA';

--Class I-A-2 at 'AAA';

--Class I-A-3 at 'AAA';

--Class I-A-4 at 'AAA';

--Class I-A-5 at 'AAA';

--Class I-A-6 at 'AAA';

--Class I-A-7 at 'AAA';

--Class I-A-8 at 'AAA';

--Class I-A-9 at 'AAA';

--Class I-A-10 at 'AAA;'

--Class I-A-11 at 'AAA';

--Class I-A-12 at 'AAA';

--Class I-A-13 at 'AAA';

--Class I-A-14 at 'AAA';

--Class I-A-IO at 'AAA';

--Class II-A-PO at 'AAA';

--Class II-A-1 at 'AAA';

--Class II-A-2 at 'AAA';

--Class II-A-3 at 'AAA';

--Class II-A-4 at 'AAA';

--Class II-A-5 at 'AAA';

--Class II-A-6 at 'AAA';

--Class II-A-7 at 'AAA';

--Class II-A-8 at 'AAA', removed from Rating Watch Negative;

--Class II-A-9 at 'AAA';

--Class II-A-10 at 'AAA';

--Class II-A-11 at 'AAA'.

The collateral in the aforementioned transaction consists of fully amortizing, fixed-rate, residential mortgage loans extended to prime borrowers, substantially all of which have original terms to maturity of approximately 30 years. Wells Fargo deposited the loans into the trust, and acts as the master and primary servicer for the collateral. Wells Fargo is rated 'RMS1' and 'RPS1' by Fitch.

Class II-A-8 has a wrap provided by MBIA. For more information, please refer to 'Fitch Moves to Underlying Ratings for MBIA-Insured Bonds' dated April 4, 2008, available on the Fitch Ratings web site at www.fitchratings.com.

For further information regarding delinquencies, collateral attributes, and other statistical information also see the web site at www.fitchratings.com.

Fitch's rating definitions and the terms of use of such ratings are available on the agency's public site, www.fitchratings.com. Published ratings, criteria and methodologies are available from this site, at all times. Fitch's code of conduct, confidentiality, conflicts of interest, affiliate firewall, compliance and other relevant policies and procedures are also available from the 'Code of Conduct' section of this site.