************** Mehr infos bei Microsoft SDK -Disk Management- **************
**MSDN Libray
**	Windows Development
**		Windows Base Services
**			Files and I/O
**				SDK Documentation
**					Storage
**						Storage Reference






Disk Management Control Codes
The following control codes are used in disk management.

Control code Operation 
IOCTL_DISK_CREATE_DISK Initializes the specified disk and disk partition table using the specified information. 
IOCTL_DISK_DELETE_DRIVE_LAYOUT Removes the boot signature from the master boot record. 
IOCTL_DISK_FORMAT_TRACKS Formats a contiguous set of floppy disk tracks. 
IOCTL_DISK_FORMAT_TRACKS_EX Formats a contiguous set of floppy disk tracks with an extended set of track specification parameters. 
IOCTL_DISK_GET_CACHE_INFORMATION Retrieves the disk cache configuration data. 
IOCTL_DISK_GET_DRIVE_GEOMETRY_EX Retrieves information about the physical disk's geometry. 
IOCTL_DISK_GET_DRIVE_LAYOUT_EX Retrieves information about the number of partitions on a disk and the features of each partition. 
IOCTL_DISK_GET_LENGTH_INFO Retrieves the length of the specified disk, volume, or partition. 
IOCTL_DISK_GET_PARTITION_INFO_EX Retrieves partition information for AT and EFI (Extensible Firmware Interface) partitions. 
IOCTL_DISK_GROW_PARTITION Enlarges the specified partition. 
IOCTL_DISK_IS_WRITABLE Determines whether the specified disk is writable. 
IOCTL_DISK_PERFORMANCE Provides disk performance information. 
IOCTL_DISK_PERFORMANCE_OFF Disables disk performance information. 
IOCTL_DISK_REASSIGN_BLOCKS Maps disk blocks to spare-block pool. 
IOCTL_DISK_SET_CACHE_INFORMATION Sets the disk cache configuration data. 
IOCTL_DISK_SET_DRIVE_LAYOUT_EX Partitions a disk. 
IOCTL_DISK_SET_PARTITION_INFO_EX Sets the disk partition type. 
IOCTL_DISK_UPDATE_PROPERTIES Invalidates the cached partition table of the specified disk and re-enumerates the disk. 
IOCTL_DISK_VERIFY Performs logical format of a disk extent. 


The following are defragmentation control codes.

Value Meaning 
FSCTL_GET_RETRIEVAL_POINTERS Get information about a file's cluster use. 
FSCTL_GET_VOLUME_BITMAP Get a bitmap of cluster allocation. 
FSCTL_MOVE_FILE Move all or part of a file from one set of clusters to another within a volume. 

*************************************************************************************************************************************
Um Sektor lesen zu können
32Bit
hDrive = CreateFile(Drive,GENERIC_READ | GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,NULL)	;öffnet Laufwerk
a=DeviceIoControl(hDrive,FSCTL_LOCK_VOLUME,NULL,0,NULL,0,&ReturnnedByteCounnt,NULL)	;nur ich habe jetz zugriff
a=SetFilePointerEx(hDrive,liDistanceToMove,&lpNewFilePointer,FILE_BEGIN)		;zum Sektor xy
a=ReadFile(hDrive,&buffer,botsec_byte_pro_sector,&sec_anz_gelesen,NULL)			;Sektor lesen
a=DeviceIoControl(hDrive,FSCTL_UNLOCK_VOLUME,NULL,0,NULL,0,&ReturnnedByteCounnt,NULL)	;wieder frei für alle
a=DeviceIoControl(hDrive,FSCTL_DISMOUNT_VOLUME,NULL,0,NULL,0,&ReturnnedByteCounnt,NULL)
a=CloseHandle(hDrive)

ab Win7 geht es nur noch über "Programm im Kopalietätsmodus ausführen unter Eigenschaften" Windows XP
also
die EXE in XP-Modus ausführen.

Win7
CreateFileEx		geht nicht
SetFilePointerEx	geht nicht

win8
CreateFile2		geht nicht