Find And Bind maxscript will scan your hdri and find the sun location. After that,it will create V-Ray sun in this position and bind it to V-Ray Dome light. You can rotate the rig by rotation the dome light or in the VrayHDRI map(horz rotation).
Notes:
-Vray only
-Spherical hdri only
-design for sun&sky hdri(one strong light)
