Two items: In the subject area of the messages, Use a
shortened form of the full item, such as "mscorwks.dll error"
The header does not appear in full on other side if it is
longer than 90 characters.

 Your problem may result from the recent update to 2.0
version from 1.1.  Some values do not get updated in the
registry from the 1.1.4322 values. These values are stored
in the data pane of
HKey_LocalMachine/Software/Microsoft/Windows/CurrentVersion/SharedDlls/
If there is a value for 1.1.4322 present you will need to
open that value to change/update it.
Right Click on the value and select "edit " or "rename"
then tap on the right cursor key to remove the highlight.
Next use left cursor key to back up to the version area in
the path shown. Then remove the version by backspacing over
it. Re type the correct path version for 2.0. This is found
in explorer under Windows\Microsoft.NET\Framework\ and will
read something like 2.0.40358. Do NOT use the version I've
typed, but the version revealed in the explorer path bar.
Save the registry hack, refresh, and close all registry
areas, refreshing after home area is reached. Close registry
editor. Close all running applications and restart.