krnlmgr.dll is a Trojan.Juny-A. krnlmgr.dll modifies data on the computer. Related files: %System%\krnlmgr.exe %System%\krnlmgr.dll More info: http://www.sophos.com/virusinfo/analyses... Removal: Remove krnlmgr.dll from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.