By combining archived software code with information on the operating system, application, drivers and other information about the computational environment in which a software program was originally run, The Emulation as a Service Infrastructure (EaaSI) can trick software into thinking it’s being run on the hardware for which it was built.  The result is a sort of software time machine, allowing historians and researchers to interact with decades old software just as users at the time interacted with it.  Even better, EaaSI’s emulations require no special equipment to execute.  Anyone with a web browser can connect to and use the service.  Funds from this grant, led and administered by Yale University Library (along with partner funding from the Andrew W. Mellon Foundation), support the continued expansion and development of the EaaSI ecosystem.  Planned activities include the introduction of new features, like the ability to model networked resources within emulated software and the emulation of mobile phone and tablet apps, as well efforts to grow the number of institutions hosting EaaSI nodes and to provide enhanced training and documentation for users.