Add installation instructions for Windows

README.md

@@ -44,6 +44,28 @@ cd src
 make
 ```
 
+### Under Windows
+As for any other platform, there are multiple options on Windows. The following
+has been tested successfully: Install CMake using the MSI installer from
+https://cmake.org, install the Microsoft Visual Studio Build Tools from
+https://aka.ms/buildtools (specifically, the C++ compiler), download and extract
+the precompiled Windows binaries from https://libusb.info. Open the x64 Native
+Tools Command Prompt and navigate to the source directory. Run the following:
+```
+mkdir build
+mkdir install
+cd build
+cmake .. -DLIBUSB_INCLUDE_DIR=<libusb_dir>/include -DLIBUSB_LIBRARY=<libusb_dir>/MS64/dll/libusb-1.0.lib -DCMAKE_INSTALL_PREFIX=../install
+nmake
+nmake install
+```
+Replace `<libusb_dir>` with the path you extracted libusb to. If compilation and
+installation succeeded, you will find a `jasonrec.exe` in `install/bin`. Copy
+the `MS64/dll/libusb-1.0.dll` file from the libusb directory into `install/bin`.
+You can now run `jasonrec.exe` from a command prompt, or by creating a shortcut
+to it that includes suitable command line options.
+
+
 Usage
 -----
 Running `jasonrec` without any arguments (or with any unsupported number of
@@ -74,4 +96,3 @@ jasonrec 4 128000 %Y-%m-%d_%H-%M-%S.wav 300
 ```
 File names may also include directory names based on time stamps, but the
 directories have to be created in advance.
-