Autodeploy Cache (Re)Use

[NormD]

We are wondering how the cache gets used and reused as DLLs are brought in to
it.

I did some timing traces starting with a cleared cache. As forms
(individual DLLs) were accessed the first time they were brought in to the
cache; I could see this in the trace. Accessing them again (after going to
another form) seemingly did not bring them down from the server (acording to
the trace), I suppose because they were in the cache.

I closed the app and then reran it. The trace showed that the server was
again accessed for the DLLs the first time they were referenced. From the
timing it seemed like there were again brought down, even though they were in
the cache from the prior run just a few minutes before. The DLLs on the
server were not updated in this time, either. Cache wasn't cleared, either.

I've been under the impression that once cached the program will reuse
what's in the cache unless there is a newer version on the server, taking the
time only to check this. However, it seems like they're being downloaded
afresh each time the program is run, and only during the current run are the
cached DLLs used.

Can somoene explain this? Is there a setting that affects this behaviour?