toastnotificationslib.dll is loaded as dynamic link library that runs in the context of a process. It is installed with a couple of know programs including Intel(R) Management Engine Components published by Intel Corporation, Intel(R) Management Engine Components from Intel Corporation and Intel(R) Management Engine Components by Intel Corporation. The assembly utilizes the .NET run-time framework (which is required to be installed on the PC). The file is digitally signed by Intel Corporation which was issued by the VeriSign certificate authority (CA).