Windows faxes are not stored in the filesystem like normal systems do, so you have to do an entire song and dance to get all faxes on a machine.

This should build a FaxSync.exe executable, which can then be used to either extract the last N days of faxes (default 1 week):

> FaxSync.exe \\myfaxserver 10

Or you can show some information about the fax server

> FaxSync.exe \\myfaxserver info

Don't do this.

I cannot stress that enough--do not do this. It's a soul crushing journey through incomplete documentation, old Windows APIs, and boneheaded design decision.

If you do, here are some notes:

• Faxes on windows are handled by an archaic API. Inbound faxes are hidden on the filesystem, locked away in a proprietary database.
• Access is provided through the FAXCOMEXLib .COM library, which you can use through .NET systems
• An example is provided from the MS docs (see second link below). This is helpful, but:
  • Note that to use this, you must enable the FAXCOMEXLib .COM reference. See Project Explorer > References > Add Reference
  • The specific reference is "Microsoft Fax Service Extended COM Type Library", version 1.0. Something tells me there won't be a version 2.0.
  • You'll also need to add a Imports FAXCOMEXLib to the top of the file.
  • Skip the line which has the objFaxServer.Folders.IncomingArchive.Refresh() method, this will fail with 0x80070032 Operation Failed.
    • Googling this will not help. Why is it there? Why is it like this? A mystery lost to the ages.
• FaxIncomingMessage's TransmissionStart date does not exist. It's an invalid date.
• (At least with our fax system), FaxIncomingMessage's SenderFaxNumber doesn't exist, rather it's a part of the CallerId string

Useful links:

• Fax Server Documentation
• Open a fax from the Incoming Fax Archive