Virtual HardDisk: Drive Serial Number

[eziodef]

I use parallels desktop 8 on MacOsX 10.8.2, my virtual machine is WindowsXP sp3 (bootcamp)

When I start windows from bootcamp (no virtualization), the serial number of the Hard driver is 6WR2HY8K.
When I start windows from parallels, the serial number of the Hard driver is 5BDJQ4GP4H5M7015MXEG.

Autocad Iventor require new activation, Windows Xp require new activation.

Have you a solution for change the serial number of the virtual driver (5BDJQ4GP4H5M7015MXEG).

I read the driver serial number with DiskId32.exe (freewere from internet). This is the example in Parallels.
**** DISK_GEOMETRY_EX for drive 0 ****
Disk is fixed
DiskSize = 500107862016

Trying to read the drive IDs using Smart

Drive 0 - Primary Controller - - Master drive

Drive Model Number________________: [ST9500423AS (disk0)]
Drive Serial Number_______________: [5BDJQ4GP4H5M7015MXEG]
Drive Controller Revision Number__: [F.0K371W]
Controller Buffer Size on Drive___: 2097152 bytes
Drive Type________________________: Fixed
Drive Size________________________: 500107862016 bytes

Hard Drive Serial Number__________: 5BDJQ4GP4H5M7015MXEG

Hard Drive Model Number___________: ST9500423AS (disk0)

Computer ID_______________________: 641520608

MAC Address: 08-00-27-00-48-E4