Submit portable freeware that you find here. It helps if you include information like description, extraction instruction, Unicode support, whether it writes to the registry, and so on.
Svchost.exe is the most mysterious process in Windows XP/Vista. Svchost.exe is a generic host process name for services that run from dynamic-link libraries (DLLs). The authentic svchost.exe file is located in C:\Windows\System32, but numerous viruses and trojans use the same file and process name to hide their activities.