Memory consumption of tested application

Hi,

We are
using TestComplete with a WPF application. The execution lasts up to 2 hours.

After about
1 hour and a half, the AUT uses 1.6Gb of memory.

Then, a
Windows Error concerning virtual memory prompts (TestExecute runs on a virtual
machine)

But when we
make manual tests, we don't have the same memory consumption :

For
instance, a test run with TestComplete increases the memory consumption by
600Mb.

The same
scenario executed with manual testing increases the memory consumption by
40Mb~.

We wonder
if TestComplete can be the cause of this problem.

Is there
something in TestComplete, which for instance, keeps some component of our
application in memory ?

How can we
solve our problem ? Is there a solution ?

Thanks for
your response.

Regards.