Sometimes your VBA program needs the path to the users desktop, or to a temp folder where working files can be placed, or to the user's documents folder. There are several ways to do this.
There's some great API code here at The Access Web.
You can also do it using the Windows Scripting Host. That method, as well as another API method, is described here, in a previous blog post. That post talks specifically about getting the path to the temp folder. I can't see that choice within the Access Web code above. Perhaps no one approach offers all the special paths. In the previous blog post linked earlier in the paragraph I use GetSpecialFolder() to get the temp folder path. You can get a couple of other special folders with that method as well- see the Microsoft documentation for details.