Solved Missing server patch results into Unhandled exception violation c0000005

I tried, admin, change comparability, Change DAP, disable anti virus, all of which did not work at all!
Then I came across the mentioned link.. Here is a synopsis of the link:

First thing to do is make sure its only you that's unable to connect to battlenet. Maybe they are performing maintenance.
-Call/IM a friend with the game and request they try logging into your realm.
-Check the "Realm Status" page at Battle-Net Status

Second thing to check.
Have you changed any router settings recently?
-Make sure there is nothing obstructing port 4000. On most routers you shouldn't have to open this port. I know first hand, that unless you specifically changed something in your Netgear or Linksys router, it will be fine if left alone.
-Also make sure any software firewall applications aren't blocking Diablo 2 from using the internet.

If those fail then try the following as a last result.
After you do this it should clear any data that you've received from battlenet recently which may have corrupted its entry. It will not delete any of your characters. Note to be VERY careful while using regedit as you can severely mess up your system if you mess with anything else.

Spank's notes ---------> I skipped the above steps, I did the rest below, which did stop the access violation pop ups!
go to start>>run
type in "regedit"

open HKEY_CURRENT_USER
open "Software"
find "Battle.Net"
Rightclick on it and Delete.

Then close all tabs up again and open HKEY_LOCAL_MACHINE
open "Software"
find "Battle.Net"
Right click on it and Delete.

And it now works!