How-to use WebDAV on Windows Vista and Windows 7

Windows is supposed to have a built-in WebDAV client. However, it doesn’t ever seem to have been especially robust and certainly since Vista a lot of people (myself included) have found that it simply doesn’t work on many supposedly WebDAV enabled sites. Thankfully there are a couple of free (and some not free) options that, while not as nicely integrated into Windows Explorer, do enable you to transfer files back and forth.