Exhibit (g)(4) FORM OF REVISED EXHIBIT A TO THE CUSTODIAN SERVICES AGREEMENT THIS EXHIBIT A, dated as of _____________, 2006, is revised Exhibit A to that certain Custodian Services Agreement dated as of May 5, 2003, between PFPC Trust Company and...

                                                                  Exhibit (g)(4)

                            FORM OF REVISED EXHIBIT A
                       TO THE CUSTODIAN SERVICES AGREEMENT

         THIS EXHIBIT A, dated as of _____________, 2006, is revised Exhibit A
to that certain Custodian Services Agreement dated as of May 5, 2003, between
PFPC Trust Company and Aston Funds (formerly known as ABN AMRO Funds).

                                   PORTFOLIOS

                    Aston/ABN AMRO Investor Money Market Fund
                       Aston/XxXxxxxxx Municipal Bond Fund
                           Aston/TCH Fixed Income Fund
                               Aston Balanced Fund
                           Aston/Optimum Mid Cap Fund
                           Aston/ABN AMRO Growth Fund
                      Aston/Veredus Aggressive Growth Fund
                        Aston/Veredus Select Growth Fund
                      Aston/Montag & Xxxxxxxx Balanced Fund
                       Aston/Montag & Xxxxxxxx Growth Fund
                           Aston/Veredus SciTech Fund
                        Aston/TAMRO Large Cap Value Fund
                           Aston/TAMRO Small Cap Fund
                         Aston/ABN AMRO Real Estate Fund
                                Aston Value Fund
                       ABN AMRO Treasury Money Market Fund
                      ABN AMRO Government Money Market Fund
                      ABN AMRO Tax-Exempt Money Market Fund
                           ABN AMRO Money Market Fund
                 ABN AMRO Institutional Prime Money Market Fund
                      Aston/TCH Investment Grade Bond Fund
                       Aston/ABN AMRO High Yield Bond Fund
                   Aston/River Road Dynamic Equity Income Fund
                      Aston/River Road Small Cap Value Fund
                       Aston/ABN AMRO Mid Cap Growth Fund
                        Aston/ABN AMRO International Fund
                        Aston/Optimum Opportunities Fund


 PFPC TRUST COMPANY                          ASTON FUNDS


 By: ___________________________             By: ____________________________


 Title: ____________________________         Title: _________________________