I am trying to install Toad and is getting the error "Products require Microsoft MSXML 4.20.9818.0 or above...". I am on Windows 7 and have already installed MSXML 6.0.
Microsoft MSXML 6.0 was installed on PC but not Microsoft MSXML 4.20.9818.0. The problem is that version 6.0 is not compatible with Windows 7.
Uninstall Microsoft MSXML 6.0 from the Add or Remove Program and install Microsoft MSXML 4.0 SP2.
Here is a link from Microsoft for Windows the MSXML version supports: