BISYS Investment Services Group, a third-party administrator for small and midsize 401(k) plans, completed an upgrade of its 401(k) plan record-keeping and processing system. The system will provide plan sponsors with enhanced Internet access, increased flexibility and capacity. The new features include expanded fund choices, detailed data reporting and Internet participant account access. BISYS executives also intend to add a dedicated plan sponsor website early this year. Separately, Bisys Fund Services, a sister company, released an online version of its FundLink mutual fund compliance and fund accounting system. Both domestic and offshore mutual fund clients will have real-time, around-the-clock access to portfolio information such as holdings, financial statements and securities pricing information and compliance test results.