I have an app that performs certain functionality even if a user is not logged into the application. The functions are

performed in separate threads and a dummy window is created so it can

be used as the parent for windows that are popped up during this

functionality.

Here is my problem: after I updated one of my machines to IE7, this

functionality will only work if I am logged in and I run it manually.

In debugging, the call to SetWindowPos never returned, even though the

values were good. Other times, I try to circumvent the code and it

fails elsewhere. I am using CreateWindow to create the dummy window and

it contains a good window handle. I think the entire issue stems from the dummy window that is being created but I cannot determine what the issue might be.

Any ideas what might be causing this problem? Any thoughts on what I

can look at? I am completely stumped, my application doesn't even use

anything from IE7 but after the install (and eventual uninstall) it

still has a hangup. In my testing alone, I use 2 computers, same OS, same code base, the only difference is IE 6 vs IE 7.