Assembly: Microsoft.VisualStudio.Shell.Interop (in Microsoft.VisualStudio.Shell.Interop.dll)
This service enables arbitrary components to register to be notified when a file is modified outside of the Environment, such as what happens when using an external text editor such as Brief.
The redirector on Windows 95 does not support file change notifications. This means that file change notifications are not supported when accessing files on a Windows 95 system over the network.
Also, depending on the file system the granularity of the file timestamps can vary. For example, Windows FAT file system has a two-second timestamp granularity. To mitigate the problems of this granularity, the file change service also treats a change in the size of the file as an update to the file even if the timestamp has not changed.