Recovery Tools CD - Data Partition

Archived from groups: alt.sys.pc-clone.compaq (More info?)

My Presario S4020WM Recovery Tools CD offers to make a new data partition
once from the unused space. No details are given. Questions:
1) Is this space taken from the C-partition?
2) Is it contiguous space?
3) Is it taken from the start, middle, or end of the disk?
4) Is it non-destructive? (so that the op system & applications already
installed on the C-partition aren't harmed)
-E