Jan said:
Why should special back-up software be necessary when backing-up programs
from my pc to a disk or an external harddrive. Is just copying not
sufficient?
Simple copying won't back up key files that are in use and you can pretty
much forget about backing up most installed programs via copying
Installed programs rely heavily on numerous registry entries, and often
place files within the Windows folder structures. It's very difficult to
tell what's done by what. Just copying the folder structure and copying it
back to a new install will not allow most programs to run. Either you
image the drive, or you reinstall.
You can export the registry and save that, but that won't help with other
files you can't keep track of.
The Windows copy routines have a tendency to just fail and close when they
encounter any difficulties, and you will have no real idea where or why this
happened. You have to start over.
If you don't use something like an imaging program, which *will* back up
everything as it is, in an easily restorable form, your recovery strategy
is based on re-installing the OS and programs, then copying your backed-up
data back in place.
HTH
-pk