[Closed] 3dsmaxcmd :: images with wrong gamma

renderings in max 2012 design on vista 64 bit with gamma 2,2 in 2,2 and out 2,2 produces the pixels i want .

when i render the same file with 3dsmaxcmd the image in the render window is fine – but the same image saved to disk is a lot darker ! help me thank you!

this is my 3dsmaxcmd values,it’s write in the a.txt:
-Cam:Camera001
-width=640
-height=480
-gammaCorrection=1
-gammaValueIn=2.2
-gammaValueOut=2.2
-sf
-outputname =c:\mm1.jpg

maxfile gamma set:

render window :

saved to disk: