inputDir="d:\\temp\\max\\*.max";
outputDir="d:\\temp\\image\\";
outputType=".jpg";
--render parameter enter here, default using network rendering
renderPar="outputwidth:320 outputheight:240 vfb:off ";

files=getfiles inputDir;

for f in files do
(loadMaxFile f;
 outFileName=outputDir + maxfilename + outputType
 renderString="render " + renderPar+" outputFile:outFileName";
 print renderString;
 execute renderString;
 resetMaxFile #noPrompt;
)