Well you got your MDACs and .NETs but what versions?

 

How you can see if and what version of the .NET Framework has been installed?

You can look in the registry or look at the files on the boot drive;

via the reegistry check the keys under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\*

Or check for a local directory like %windir%\Microsoft.NET\Framework\<version>

where <version> is

v1.1.4322 - for .NET Framework v1.1
v1.0.3705 - for .NET Framework v1.0
v2…. Etc etc

 

How you can see if and what version of the MDAC has been installed?

Download and install: http://www.microsoft.com/en-us/download/details.aspx?id=1953

Run the too CC.EXE in the folder C:\CompChecker\