Is is it normal to install software and does not see their size

I need to ask something: it is possible to install a software to an hardware to get the version information of software on the control panel, the publisher, the date, the name, hardware working and doesn’t have the size? Let me explain I have installed a webcam Hercules HD Twist and I updated the software I can see software version, date, name, webcam is working however the 64MB does not appear. Is as if it had been installed on a server and I was using it from there. It also happens with Avast 8 Free Edition, CCleaner Free Edition and Google Chrome. I thought that it could be normal when I saw it in Avast and CCleaner once I am using free editions. But with Google Chrome and Hercules HD Twist webcam! Strange is that they are all programs connected to browsing and protection.

Many programs do not show their size. Adobe Flash and Intel Graphics are two more. It is normal.

With all due respect this was answered in your other thread http://forum.avast.com/index.php?topic=121588.msg929230#msg929230 8)