Yes, you can indeed install them in Windows as well. sfreerdp is the main server binary, and wfreerdp is the main client.

Here's a full explanation of what each file does:

1. freerdp-proxy.exe: This executable is a proxy server for RDP sessions. It's used to forward, or 'proxy', RDP traffic between a client and a server. This can be useful for security, auditing, or network architectural reasons.

2. sdl-freerdp.exe: This binary is a version of the FreeRDP client that uses the Simple DirectMedia Layer (SDL) for its graphical output. SDL is a cross-platform development library designed to provide low-level access to audio, keyboard, mouse, joystick, and graphics hardware. This makes sdl-freerdp.exe useful for systems where a lightweight or more compatible graphical output method is needed.

3. sfreerdp-server.exe: This is the server component of the FreeRDP project. It allows a Windows machine to act as an RDP server, accepting connections from RDP clients. This can be particularly useful for testing or for setting up remote desktop services on systems where a full-fledged RDP server isn't available or desired.

4. wfreerdp.exe: This executable is the standard FreeRDP client for Windows. It's used to connect to RDP servers from a Windows machine. It provides a wide range of features and options typical of RDP clients, such as support for different color depths, audio redirection, and file system redirection.

5. winpr-hash.exe: This tool is part of the Windows Portable Runtime (WinPR) library, which is a part of FreeRDP. It's used to create a NTLM hash from a username and password pair. The created hash can be outputed as plain hash or in SAM format.

6. winpr-makecert.exe: Also part of WinPR, this executable is used to create certificates. Certificates are crucial in secure communications, such as those used in RDP sessions. They are used to establish trust and encrypt data. This tool can be used to generate certificates for testing or for specific secure communication requirements within the RDP framework.