Very cool, if true

So, having sat down to do a small C# project, I realised I was still using the beta of Visual C# Express.  No problem, I thought - I'll grab the latest version.  So I downloaded the setup, started the install, and it told me I had to uninstall the beta versions _in a specific order_ before I could install the full version.

Now, the install/uninstall of software is easily automated.  This being the case, why the fuck doesn't the full version's installer _automatically_ remove them all in the right order?

More to the point - part of what .Net does is allow the installation of  software into its own folders, without cross-dependencies.  This being the case, why does the installation/uninstallation of software have to go in any particular order at all???