What is the difference between "Suspend Proejct to file (Rt Click|Download|Suspend to file)" and "Suspend (F9)"?
How does Suspend to file work? How can I download a portion of a website and then download the rest later (without redownloading all of the originally captured files?)?
The difference is simple. F9 waits for all currently loading files to be complete, then just waits until you press F9 again to continue loading other files in the Queue. It is useful when your Internet connection is ocupied by Offline Explorer and you want to browse some site, etc. This is just a temporary pause in downloading activity.
Also, it is useful when you want to stop downloading, but you want to keep the files which are being loaded now. For example, if you have 1 MB file that loaded up to 50%, it is easier to press F9, wait for tha file to finish and then press Stop. If you Stop downloading without the Suspend, 50% of the downloaded file will be not saved to the disk.
Another reason for the Suspend is to see what is going on in the Queue to abort unwanted links. I use this very often.
Suspend To File works like Stop, but it also saves the current queue state to a specified file, so you can continue exactly from the stop point the next time.
I hope this helps.