Locking only folders, and everything under it.

[Gintaras]

Compiling:
- checks for errors;
- declares (remembers) all globals (loads dlls, type libraries, creates global variables, etc);
- converts text to binary code that is stored internally. It is not native code, but is interpreted much faster than text.

About the price and upgrade policy, is it true that all update and upgrades are free when you bought a license ?

True.