Expand volume in Windows 2003 Server using DiskPart

C:\Documents and Settings\username>diskpart
Microsoft DiskPart version 5.1.3565
Copyright (C) 1999-2003 Microsoft Corporation.
On computer: USERNAME-HELPER-VM
DISKPART> list volume
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 D CD-ROM 0 B
Volume 1 C NTFS Partition 30 GB Healthy System
Volume 2 E NTFS Partition 10 GB Healthy
DISKPART> select Volume 2
Volume 2 is the selected volume.
DISKPART> extend
DiskPart successfully extended the volume.
DISKPART> exit
Leaving DiskPart...