I downloaded spiral knights but the install program failed and I get a message "we were unable to download the necessary files after 5 attempts. You can try running the application again , but if it fails you may need to uninstall and reinstall"
I have tried running the apllication again and uninstalling but get the same error.
Try the quick solution to see if you can run it from the web launcher instead:
http://www.spiralknights.com/register/thanks.wm
Or if that is what you're doing already, then try and download the client instead from here:
http://download.threerings.net/spiral/client/spiral-install.exe
Otherwise it may be a matter of access rights to install, you'll want to check that with those who administrate the computer.
For more options see our technical walk through:
http://forums.spiralknights.com/node/48