If your goal is to send a character to the LFNReport.exe program (I suppose it is a Console program), you may try the following syntax in the command line:
LFNReport.exe args < response.txt
response.txt is a file containing the characters you want to send to the application, in your case:
0
should be enough.
For a Windows program, you may use a Windows Script File, when the program is started, you can use the Sendkeys method to send the characters.
More details on Windows Scripting Host here:
http://msdn.microsoft.com/en-us/library/98591fh7(v=vs.84).aspx[
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