Gabriel;
Are you using v4.0?  The command to run in batch mode is:

C:\DSSAT4\DSCSM040.EXE B batchfilename

Where "batchfilename" is the name of your DSSAT4 batch file.  By default this name is D4BATCH.DV4.  The same command and same format batch file are used by both the maize and wheat models and the command is issued from the data directory (e.g. from C:\DSSAT4\MAIZE or C:\DSSAT4\WHEAT).  You can open the batch file and look at it in a text editor. Compare the file you are using your maize run with that for the wheat run.  If the wheat batch file looks corrupt, you can create a new one using the DSSAT shell, or in a text editor.
Cheryl

-----Original Message-----
From: DSSAT - Crop Models and Applications [mailto:[log in to unmask]] On Behalf Of Gabriel Shields-Estrada
Sent: Thursday, November 19, 2009 1:46 AM
To: [log in to unmask]
Subject: Batch files in DSSAT

I am attempting to run the wheat model in DSSAT from the command line using
R. Everything runs when I use the maize model, or run the wheat model from
the shell. However, when I run wheat using the command line I get an 'Error
in the format of the batch file." Does anyone know how to tackle this
problem? Thanks.

Gabriel

--
Gabriel Shields-Estrada
B.S. Candidate in Management Science & Engineering
Stanford University Class of 2011