I am confused with upgrading concept, i know upgrading is to install the program top of the old program and it has to compatible with previous version.
but what i am confused is:
1. Does my upgrade software aumatically comes top of my old version? or there could be problem like verifying old version software (like registration key code etc)
2. And for example if i want to install my upgraded version to another pc then i hv to install my old version first then only i can install upgraded version software is that right? on this case do i need to verify my old version or i can just install upgraded version.
3. If my vendor has provided me new key for upgrade version to register is it possible that my vendor can provide me new rigistration code to install program so that i don;t have verify my old version in future when my system crash?
can you explain me the concept of upgrade more thanx!