Vista and Windows Server 2008 must have the msvcp71.dll and msvcr71.dll in the Windows system directory for SAP to work correctly with Sybase Unwired Platform.
Download these .dlls from the SAP Web site at http://www.sap.com/usa/index.epx and place them in your Windows system directory.
Read the Sun and IBM document on SAP support at http://developers.sun.com/docs/javacaps/designing/dotdappadptr.ggije.html for more information.