NIS 2009. Remove failed. Rescan. Again and again....

Hello. My NIS 2009 scanned my PC and found some threats. NIS at thirst tried to remove them, but it couldn’t: cannot be removed from unsupported file. Status: Remove failed. Action: Rescan. It rescans, but the result the same. I know- these threats  are not harmful, so  I’m pressing “finish”, closing NIS2009, but after several minutes it start again writing about the same threats which it couldn’t remove…. How to stop NIS for repeating the same action and for example to choose option “ignore them”Thanks