When doing B1IF work, sometimes we need a webdav client to access the atoms. Not everyone prefers the entire Altova XMLSpy suite. Here are a couple of good (free!) alternatives.
For BitKinex there is a quirk with the program when adding the webdav folder, it adds it by default as a file not as a directory, so you need to change that for it to work. Here is a screenshot of the setting.