XP.WIM at bootmgr

XP CD D1(VM) -> root2 (VM) -> map -> XP.wim -> bootmgr(USB) or syslinux

Is this actually possible to be build?

I've gone so far quite lenghts to try to boot it with FILE=[boot]\xp.wim to ramdisk solutions without modifying a single XP file.

Reproduce:
1. VMWare
2. HD1 (IDE) - C: (NTFS), HD2(IDE) - D:(NTFS)
3. XP install D:
4. from D: XP installation ->
5. XP Install C:
6. Map C: on reboot
7. Capture C: -> XP.WIM
8. build bootmgr:
- boot\<vista/7files>
- bootmgr
- XP.WIM
9. boot ramdisk=[boot]\xp.wim,{ramdiskoptions} (makes bootmgr errors no matter how I build it) or directly FILE=[boot]\xp.wim (boot.ini errors no matte how I build it)
10. build basic ISO with Vista bootcode

So, is there anyway to use WIM as XP installation disk without WinPE enviroment or destroying the whole disk with some none sense ?

-edit-

Fail to mention, this method is tested to be fully functional with anykind of VHD or IMG with simply mounting the 'vhd' to X: or any drive and directing boot to it. However, I cannot understand why neither bootmgr or syslinux memdisk can do that clean mount WIM -> D: -> boot D:..