The tools adapts the size (height) of source object to target object. It keeps the scaling of the object (height to width ratio).
Syntax
VegScale.exe "C:\ArmA\x\ofpip\OFPIP\addons\p_bi_res_vegetation\m\tree\OFPIP_Smrk_velky.p3d" "C:\ArmA-build\ofpip_r_arma2_vegetation\m\tree\OFPIP_Smrk_velky.p3d"
Requires Bis.dll - Check T_D tools homepage in Dev-Heaven.