问题
I can't find documentation for how to do it, which makes me think I'm not supposed to do it.
回答1:
No, svchost.exe is undocumented and only supported for services that are part of Windows.
Part of the reason is reliability - a crash in a 3rd party service should have no effect on a critical Windows service.
Why do you want to use svchost? Do you have several services that you want to combine together? Creating your own exe to host multiple services is pretty straightforward.
回答2:
Comment in this link will help you out, its too much to cut/paste here. Source is C++ as you didn't specify a language I dont think it will matter.
The Link
EDIT: For the record, I am not saying it's a good idea.
回答3:
You can download the windows NT resource kit (http://www.microsoft.com/downloads/details.aspx?familyid=9d467a69-57ff-4ae7-96ee-b18c4790cffd&displaylang=en), and follow these instructions to create a service out of anything: http://support.microsoft.com/kb/137890
来源：https://stackoverflow.com/questions/849613/can-i-use-svchost-exe-to-host-my-own-services