Why exceptions for error handling is so important

[Walter Bright via Digitalmars-d]

On 1/11/2015 2:48 AM, Walter Bright wrote:
> To migrate the system to the new disk, the idea was to use Windows
> Backup/Restore of the image. Unfortunately, Windows Backup would get a ways
> through the process, then fail with no message beyond an error code. Googling
> the error code produced a vast number of results, and various schemes for fixing
> it, some official, some not. None of them were applicable. Many involved loading
> new drivers, editting the system registry, and all sort of unappealing "solutions".


BTW, the error code I got from Windows Backup is 0x80070002. Backup's suggestion 
for what to do next was to run it again (!). Geez.