Solved! Go to Solution.
Have you tried replacing the version of curl.exe that comes with the kit (in the Macros/Supporting_Macros folder) with the one linked in Kane's post? If you haven't already, I would recommend giving that a try, as this is a fairly common issue and that usually does the trick to fix it.
Alright. I got the same issues and could finally install without any issues. First thing, try to give admin rights for the folder you are trying to install this, I had to do this. Next thing, I got the dll missing error, then download and install the OpenSSL from this page - https://slproweb.com/products/Win32OpenSSL.html . Make sure that you install Win32 OpenSSL v1.0.2d Light file as it fulfills the dll dependencies. While installing make sure that the DLL installation path is windows directory. This will solve your issues.
Note : you have to do all this if you have downloaded visual analytics kit for tableau from Alteryx as they dont have the dependency dlls packed up with their installation file. If you want to avoid all this issues, download the latest version fo the kit from - http://www.theinformationlab.co.uk/att . This installation file automatically install OpenSSL for you.
Let us know if you still have any issues.
Make sure you check the option that puts DLLs in the Windows System Directory.