Or use ImDisk by Olof Lagerkvist to create/mount virtual hard disk, floppy or CD/DVD drives.
http://www.ltr-data.se/opencode.html#ImDisk
http://www.ltr-data.se/files/imdiskinst.exe
Create a file <UBCD4Win>\plugin\drivers\ImDisk\ImDisk.inf
CODE
[Version]
Signature= "$Windows NT$"
; ImDisk by Olof Lagerkvist
; http://www.ltr-data.se/opencode.html#ImDisk
; http://www.ltr-data.se/files/imdiskinst.exe
[PEBuilder]
Name="Driver: ImDisk Virtual Disk Driver"
Enable=1
[SourceDisksfiles]
files\imdisk.cpl=2,,1
files\imdisk.exe=2,,1
files\imdisk.sys=4,,1
[SetupReg.AddReg]
0x4, "ControlSet001\Services\ImDisk","Type", 0x1
0x4, "ControlSet001\Services\ImDisk","Start", 0x1
0x4, "ControlSet001\Services\ImDisk","ErrorControl", 0x0
0x1, "ControlSet001\Services\ImDisk","ImagePath","system32\DRIVERS\imdisk.sys"
0x1, "ControlSet001\Services\ImDisk","DisplayName","ImDisk Virtual Disk Driver"
0x1, "ControlSet001\Services\ImDisk","Description","Disk emulation driver"
[Software.AddReg]
0x1, "Classes\Drive\shell\ImDiskUnmount","","Unmount ImDisk Virtual Disk"
0x1, "Classes\Drive\shell\ImDiskUnmount\command","","rundll32.exe imdisk.cpl,RunDLL_RemoveDevice %L"
0x1, "Classes\Drive\shell\ImDiskSaveImage","","Save disk contents as image file"
0x1, "Classes\Drive\shell\ImDiskSaveImage\command","","rundll32.exe imdisk.cpl,RunDLL_SaveImageFile %L"
0x1, "Classes\.iso", "", "IsoFileImage"
0x2, "Classes\IsoFileImage\shell\Mount as ImDisk Virtual Drive\command", "", "rundll32.exe imdisk.cpl,RunDLL_MountFile %L"
0x1, "Classes\.dsk", "", "ImFileImage"
0x1, "Classes\.ima", "", "ImFileImage"
0x1, "Classes\.img", "", "ImFileImage"
0x2, "Classes\ImFileImage\shell\Mount as ImDisk Virtual Disk\command", "", "rundll32.exe imdisk.cpl,RunDLL_MountFile %L"
z-zip 7-zip opens imdiskinst.exe.
Copy files imdisk.cpl, imdisk.exe and imdisk.sys to <UBCD4Win>\plugin\drivers\ImDisk\files\