windowsclient.mshi
36 distinct file contents recorded under this name ยท 77 Windows records
Microsoft Help index Reference
An .mshi file contains index data for a help container of the Microsoft Help Viewer. The XML file lists the topics of the matching .mshc container with their identifiers. The help system reads the index during installation of the content. Each .mshc container ships with one .mshi file. Together they form one help package.
A file extension is only a part of the file name. It does not give a guarantee about the format or the content of a file. But on Windows, the extension selects the program that opens the file.