Long Operation Dialog

I've got an application that performs some long operations and I want to display a dialog to let the user know what is going on.

Is it possible to access the dialog that Windows explorer uses for long operations (i.e. the one used when copying files)? I know you can use it specifically when copying fiels using the CopyFile call, but I'm sure I read once that there was a general purpose 'Long Operation' dialog that just allows you to display the same kind of dialog, with the animation you specify, etc.

Explorer uses the same kind of dialog elsewhere (e.g. in setting NTFS permissions) so it would seem sensible that there is a common dialog somewhere, but I can't find it.

Any pointers would be appreciated.

Jon
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