Corrupted Curse Client Installation
If you are unable to start Curse Client v5, and have been able to in the past, it may be due to a corrupt Microsoft ClickOnce app store. This is essentially the location on your hard drive where Windows caches per-user applications, such as Curse Client v5.
How to Fix a Corrupt Curse Client Install
You will want to delete your 2.0 folder. This is a fairly easy task to do. If you are unsure how to do this you can check out our guide on how to do this process.
Note: You may want to also clear out your computers Temporary files as well. You can use a program such as CCleaner to help you with this.
How to fix a corrupt ASP.NET Install
From the Windows Start menu, choose Computer
In the Search textbox, enter the following:
WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files
Delete any files called "curse".
Then run or install the Curse Client from a fresh download.