Lets see if we can get you running with the latest version. Yours dates back to March of this year I think. First the bad news. Etsy made a lot of changes the end of June which required many changes in our program and in the tools4etsy library that we use. There are many aspects from these prior programs which will no longer work, including that update button. Now for the good news. If we can get you upgraded all future updates will be detected and occur automatically if you choose so. It will also be much faster sinch it only upgrades the changed portions of the program
First, I would first uninstall the old version. Then try to install the new version. When you click the main download button it should take you to
http://estoregadgets.com/software/zetsy/publish.htm This page should state that your downloading 1.7.20. Below this it states "If these components are already installed, you can launch the application now. Otherwise, click the button below to install the prerequisites and run the application" Clicking on the word launch (highlighted in blue) should bypass the need to reinstall the required Microsoft library.
If for some reason this does not install I have a slightly older stand-alone install (which is the way I was doing it before July) which is at the bottom of the Zetsy download page (
http://zimpro.co/ZetsyHome.htmlLet me know how it works for you.