If you are a returning customer who used Impulse to install originally, you will need to uninstall everything ODNT with Impulse first before installing the ODNT apps. Scrtatch this part as it is no longer possible. If you have Stardock or other games through it, you will need to keep what is now GameStop. If not, it can be uninstalled.
If not, may I ask what led you to beleive you needed Impulse for ODNT? Is there still information somewhere that states this? If so, a link will help.
Impulse has been defunct for a while now and if that is the case, it should be updated.
/End Rosco_P impersonation.