Hi apinux,
old plugin available at:
\Downloads\AppYGS\HD Tasks\Imaging\GImageX....
*
things changed for a while, wimfltr.sys not used anymore ;)
wimmount.sys is the new kid on the block (I guess things changed during Win7..)
*
Shortly, there is no such plugin for now

If you write one,
There is
Utils\GetWaikTools Plugin
available on all project that quickly download required files for your task,
imagex.exe, wimgapi.dll wimmount.sys
to
%GlobalTemplates%\GetWaikTools
subfolders..
Here is a not tested sample, would be useful for such plugin, and give you an idea.
[Variables]
%ProvideFiles%=%GlobalTemplates%\GImageX_Files\DISM
[Process]
If,Not,ExistFile,%ProvideFiles%\imagex.exe,Run,%ScriptFile%,Process_GetWaikTools
//-
If,ExistFile,%ProvideFiles%\imagex.exe,FileCopy,%ProvideFiles%\imagex.exe,%Target_Sys%
If,ExistFile,%ProvideFiles%\wimgapi.dll,FileCopy,%ProvideFiles%\wimgapi.dll,%Target_Sys%
If,ExistFile,%ProvideFiles%\wimmount.sys,FileCopy,%ProvideFiles%\wimmount.sys,%Target_Sys%\Drivers
//--
[Process_GetWaikTools]
If,Not,ExistDir,%ProvideFiles%,DirMake,%ProvideFiles%
Set,%subM%,ADK_6
Set,%sub%,x86
If,%SourceArch%,Equal,x64,Set,%sub%,amd64
If,ExistFile,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\imagex.exe,FileCopy,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\imagex.exe,%ProvideFiles%
If,ExistFile,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\wimgapi.dll,FileCopy,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\wimgapi.dll,%ProvideFiles%
If,ExistFile,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\wimmount.sys,FileCopy,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\wimmount.sys,%ProvideFiles%
//-
If,Not,ExistFile,%ProvideFiles%\imagex.exe,Begin
If,ExistFile,%ProjectDir%\Utils\GetWaikTools.script,Run,%ProjectDir%\Utils\GetWaikTools.script,Launch_Program,%ProjectDir%\Utils\GetWaikTools.script,"-Win8.1Dism -Silent"
If,ExistFile,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\imagex.exe,FileCopy,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\imagex.exe,%ProvideFiles%
If,ExistFile,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\wimgapi.dll,FileCopy,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\wimgapi.dll,%ProvideFiles%
If,ExistFile,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\wimmount.sys,FileCopy,%GlobalTemplates%\GetWaikTools\%subM%\%sub%\DISM\wimmount.sys,%ProvideFiles%
End
and there maybe required some registries for
ControlSet001\Services\wimmount
..
ControlSet001\Enum\Root\LEGACY_WIMMOUNT
..
Rest on your hands

