Cannot Uninstall 2.0 - 2.1 Upgrade failes

When trying to install 2.1 on my computer (32 bit / Windows 8.1) I do get an error message / request to show the path to a file called lspadlocksetup.msi for removing the older 2.0 version. I cannot locate this file and thus cannot install 2.1.

What do I need to do ?

Go to http://www.xlspadlock.com/accountdownloads, log in and download the installer for version 2.0.
Then run it and choose Uninstall in the Setup Wizard.

After that, you’ll be able to install version 2.1 again.