Can my window be displayed on the Windows login screen?

Question

I am writing a service / user mode application that can send the system to sleep after a certain configurable period of inactivity. The user mode process may require a user message / warning to be displayed before performing a power operation. This works fine if the user is logged in, but if the workstation is locked, the user sees this view:

So, I'm curious if it is possible to display my own window (overlay) over such an entry screen?

Answer 1

Only supported APIs are supported because Vista is a credential provider. documentation can be found on MSDN .

Answer 2

I found this post , which may be exactly what I need. I will send later when I try ...