Resize System Partition Without Restart?

I recently used Disk Director for the first time, to resize my system partition.

Briefly: My hard disk has two partitions. C: is my system partition and D: is my data partition. In order to make C: bigger I shrunk D: by the corresponding amount.

What surprised me - happily - is that Disk Director resized my system partition without needing to restart my computer. How can Disk Director resize a partition currently in use? Is this for real or is Disk Director using some 'trick' that's going to come back to haunt me in future?

 

If the partitions are working correctly and don't have any errors from a chkdsk, then they should be fine.

Usually, DD will have to reboot to change the system partition. In fact, it's better to boot from the DD CD and make changes to the system partition instead of starting the procedure in Windows and having it reboot to finish.

Could you post the following information...
What build of DD did you use?
What OS were you running in?

 

It's Disk Director 10.0 build 2160, on Windows XP Home SP 2. I was really surprised that I didn't need a restart, but I've been using my computer for several days now, and all seems to be well.

I totally agree with you that a disk should be free of errors before attempting a repartition. And I always image a disk before doing partition operations.

 

...and, CHKDSK has no problem with the new configuration, so I really am all set.