Mem Usage

[Gux]

I use Crystale Reports .Net.

My problem is easy to understand :
When I open my application 'Mem Usge' is 10 Mo, when I begin proccess it's 20 Mo and when my Crystal Report is open it's 40 Mo.

It's a Windows Application, but it can't run on 'normal' pc.
How can I do to have low memory usage ?

Thanks for help.

Gux