The Windows PV Drivers are built individually into a tarball each. To install a driver on your target system, unpack the tarball, then navigate to either the x86 or x64 subdirectory (whichever is appropriate), and execute the copy of dpinst.exe you find there with Administrator privilege. Read the installation instructions here.
Important note:
Software used to build previous versions of the Windows PV drivers was affected by multiple vulnerabilities, all previous binaries have been removed. Find out more here.