"APRWRMSG.EXE" is a windows process, note the HKLM\SOFTWARE\Microsoft\Windows\Current
"ALCXMNTR.EXE" - The Realtek AC97 Audio monitor - nothing to worry about, again, note the HKLM\SOFTWARE\Microsoft\Windows\Current
"SOUNDMAN.EXE" - This is installed with sounds cards made by Realtek, again, nothing to worry about, again, note the HKLM\SOFTWARE\Microsoft\Windows\Current
Anything with Microsoft\Windows in the directory line is generally safe, always best to check up on them though.