horizon stopped working for me when the last update came out v184.108.40.206:
i have windows xp and i have .net framework 4
i have already tried
Delete and re-download Horizon
Install .NET Framework 4 (Or Uninstall all versions, and install again)
Take Ownership of Horizon
Make Horizon an exception to EVERY firewall and anti virus you have.
Open Horizon and Task Manager, and on the memory tab, it should be around 50,000k used. (In not, it’s being blocked)
Run in Compatibility Mode (Windows XP or Above)
Have you added Horizon to an exception list in Norton? Norton picks Horizon up as a false positive, so it should auto-delete when you try and run it if you haven’t added it to an exception list.
Go to Settings And then it should look like this:
Click the Plus next to each exclusion and add the directory of where horizon is installed/located. In my case, Horizon is located in a folder called Horizon inside a folder called Modding located on my Desktop.
[details= Horizon Data Fix]Sometimes horizon will have problems or errors caused by various things. This is not normally a problem with they way its coded, Could be a variety of things. Try Deleting horizon data from the appdata folder. You can do this by following this Simple Steps:
Once Downloaded, Please Open Horizon.exe. This will Re install these files you have deleted.
delete Horizon Data
Click the Start Button, If you dont know what that is, Its normally bottom left. It Says start in Windows XP, And in vista and Seven Has 4 Cloloured Flag looking things. CLick it and there should be a search box…
In the search box, Type RUN
You should now have this box:
Type in the Highlighted Blue area, Exactly this:
Copy and paste that.
This should Open:
Or something like this. Click On Appdata At the Top
Now Open Local Folder
Now Open Xenocode
Now Open SandBox
Right Click on Horizon This should Appear:
Click on Delete, Normally 3rd From the bottom, Above Rename
Save this to Desktop, Now Open Horizon.exe
This will now Install the files you deleted.
The Other Way is:
Open My Computer
Click ALT Key
Click Folder Options
Find and Click Show Hidden Files Folders and Drives.
Appdata Should Now be Visible
Right Click Horizon