Under Windows, an attempt to run an application as another user may fail for obvious reasons, such as the target user lacks sufficient permissions for the operation in question. There is at least one less obvious reason why this operation will fail: the Secondary Logon service must be running. Less obvious to me, at least.
... until the collector arrives ...
This "blog" is really just a scratchpad of mine. There is not much of general interest here. Most of the content is scribbled down "live" as I discover things I want to remember. I rarely go back to correct mistakes in older entries. You have been warned :)