shell386.exe is probably adware or spyware. This file, and possibly others, are running in the background on your computer. Deleting these files immediately is very important.

shell386 and it's associated process, Trojan.W32.RealSearch, are known to be a type of spyware. Before making any changes to your computer, you should backup your files, or create a Windows system restore point, so you don't lose any essential data.

This free scan of your computer will help you to not delete any essential programs.

If shell386.exe is active on your computer, other types of viruses and adware are probably lurking, undiscovered. Using this free computer scanning toolis a good way to avoid any future problems with viruses and adware.