Most likely this has to do with .net frameworks being faulty (Unexpected debug information initialization error -- 'Failed to find a required export in the runtime.' points to the .net frameworks)
It's guessing as usual as we don't have a full logfile attached here (PLEASE ATTACH THE COMPLETE LOGFILE if U want proper help and advises instead of (un)educated guesses what could be wrong)
And as he stated he tried several versions of HB (so HB1 and 2 could've mixed here).
Steps to try...
1) uninstall and reinstall .
net frameworks (3.5 being the recommended version, 4 being the latest version)
2) uninstall and reinstall
Honorbuddy 1.9.1 (if you want to try the beta version) or
Honorbuddy 1.331 (if you want to run the stable version). Install in a separate folder please.
3) If using Honorbuddy 1.9.1 create a folder called Mesh on a location of your choice (make sure you have about 500 MB space on the harddrive you create that folder)
4) To make a safe startup delete all plugins in the plugin folder (you can add these later on again if everything works) and delete all CC's except the one you want to use.
5) Start honorbuddy.exe in Administrator Mode (you are running Vista SP2). To do this, right click honorbuddy.exe and select Run as Administrator
6) Login to Honorbuddy with your shop credentials (usename + pass)
7) If you use Honorbuddy 1.9.1 after logging in go to the General tab and point Honorbuddy to the Mesh folder you created in step 3
8) Set food, water, mount and other options desired.
9) Go to the start tab and select what you want to do (Grind, PvP, RaF, Quest), select a profile to run and press start.
10) Honorbuddy should run now.
If it does
NOT run or gives errors again, post a
complete LOGFILE (found in the logs folder in the Honorbuddy installation map).
If this is too big for the forums, zip the file up and try and attach it then.
In order to attach a file on these forums you have to select "Go advanced" when making a post.
Then you will have an option to "manage attachments".
Thank you, LiquidAtoR.