A South Dakota Service Agreement is a contractual arrangement between Morgan Stanley Dean Witter Advisors, Inc. (referred to as "Advisors") and Morgan Stanley Dean Witter Services Company (referred to as "Services Company"). This agreement outlines the terms and conditions of the services provided by Services Company to Advisors. One type of South Dakota Service Agreement is the Investment Advisory Agreement. This agreement establishes the relationship between Advisors and Services Company, outlining the scope of the advisory services provided by Services Company to Advisors. It includes details such as the compensation structure, responsibilities of each party, investment objectives, and any restrictions or limitations. Another type is the Custody Agreement, which governs the custody and safekeeping of assets related to the services provided by Advisors. This agreement establishes the roles and obligations of both Advisors and Services Company in maintaining the security and proper handling of client assets. Furthermore, a Trading Agreement may be included, which details the terms and conditions related to the execution and settlement of transactions made on behalf of Advisors' clients. It outlines the procedures, limitations, and responsibilities of Advisors and Services Company in executing trades accurately and in a timely manner. The South Dakota Service Agreement also typically covers provisions related to compliance with applicable laws and regulations, confidentiality of client information, dispute resolution mechanisms, and termination terms. Keywords: South Dakota, Service Agreement, Morgan Stanley Dean Witter Advisors, Inc., Morgan Stanley Dean Witter Services Company, Investment Advisory Agreement, Custody Agreement, Trading Agreement, advisory services, compensation structure, investment objectives, custody and safekeeping, assets, client assets, execution, settlement, compliance, confidentiality, dispute resolution, termination.