I have extend the volume D: after removing the volume P: using Windows MMC No problemAll il OK  
Hello,My configuration:Windows 2003 SBS SP2Machine production, heart of the system!Principal roles:DCDHCPDNSIISEXCHANGESQLAntivirus (Trend Micro Worry-Free Business Security Advanced)Print ServerMachine:PowerEdge 1600SCPERC RAID card 4/SC4 physical disks (68.24 GB) = 1 Virtual Disk (204.73 GB) = 3 dynamic volumes• C: 40 GB NTFS (boot system) = simple boot volume• D: 65 GB NTFS (Data directory up email and anti-virus)• P: 99.72 GB NTFS (almost empty) The situation:Since 3 days I am fighting with the space on my C: drive which went from 5GB to 0 bytes in 2 days!I await the return of Trend because I noticed that a maximum of files were created or modified by the antivirus soft in this time!The question:From memory, dynamic disks can be "extend" ?!My idea: delete the volume P: and then merge the free space with the C: drive (boot system) to produce a new volume of about 140 GBThank you for sharing your experiences, recommendations, etc ...
Extending the system volume on SBS 2003