MBUSSDAPI.DLL

Mbussdapi.dll file is part of Microsoft Windows Mobile Broadband USSD API product developed by Microsoft® Windows® Operating System. It is responsible for Microsoft Corporation functionality. This part is required for Microsoft Windows Mobile Broadband USSD API to function. If you are planning on replacing mbussdapi.dll with a new version make sure that you backup your old file. Replacing mbussdapi.dll file with a diffent version can cause Microsoft Windows Mobile Broadband USSD API to malfunction.