Mwssrcas.dll is a Spyware.MyWebSearch. Mwssrcas.dll is a Browser Helper Object. Mwssrcas.dll monitors user Internet activity. Related files: %Program Files%\MyWebSearch\bar\2.bin\MWSOEMON.EXE %Program Files%\MyWebSearch\bar\2.bin\MWSOESTB.DLL %program files%\mywebsearch\bar\2.bin\mwsbar.dll %program files%\mywebsearch\srchastt\2.bin\mwssrcas.dll Removal: Remove mwssrcas.dll from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.