Problem in Running EXE file from Java

Question

Hello Friends,
I am calling an EXE program from my JSP page using Runtime.exec() method. The exe file simply reads a file and writes the content into another file (like copying a file). Now if I am providing fully qualified path to both source and destination files, then it runs absolutely fine. However, if i don't mention file path (only fine name is there), it creates output file in System32 folder and the resultant file doesn't contain any data.
I am providing the source for the EXE file.
==============
Source 1 (with fully qualified path name)
#include <stdio.h>
#include <fstream.h>
#include <iostream.h>
#include <string.h>
#include <stdlib.h>
void write_temp_file1(char *);
void main()
char * myTempPath=NULL;
myTempPath=(char *)calloc(100,sizeof(char));
strcpy(myTempPath,"D:\\temp\\tempFile.txt");
write_temp_file1(myTempPath);
myTempPath=NULL;
void write_temp_file1(char * fileName)
// first read the file and write another file with same content
char * line1=NULL;
char * line2=NULL;
char * line3=NULL;
line1=(char *)calloc(100,sizeof(char));
line2=(char *)calloc(100,sizeof(char));
line3=(char *)calloc(100,sizeof(char));
ifstream inf;
inf.open(fileName,ios::nocreate);
inf>>line1;
inf>>line2;
inf>>line3;
inf.close();
ofstream outf;
strcat(fileName, "1");
outf.open(fileName);
outf<<line1<<endl;
outf<<line2<<endl;
outf<<line3<<endl;
outf.close ();
================================
Scenario 2 (with file name only)
#include <stdio.h>
#include <fstream.h>
#include <iostream.h>
#include <string.h>
#include <stdlib.h>
void write_temp_file1(char *);
void main()
char * myTempPath=NULL;
myTempPath=(char *)calloc(100,sizeof(char));
strcpy(myTempPath,"my_temp_from_exe.txt");
write_temp_file1(myTempPath);
myTempPath=NULL;
void write_temp_file1(char * fileName)
// first read the file and write another file with same content
char * line1=NULL;
char * line2=NULL;
char * line3=NULL;
line1=(char *)calloc(100,sizeof(char));
line2=(char *)calloc(100,sizeof(char));
line3=(char *)calloc(100,sizeof(char));
ifstream inf;
inf.open(fileName,ios::nocreate);
inf>>line1;
inf>>line2;
inf>>line3;
inf.close();
ofstream outf;
strcat(fileName, "1");
outf.open(fileName);
outf<<line1<<endl;
outf<<line2<<endl;
outf<<line3<<endl;
outf.close ();
==========================
Can anyone figure out what could be the problem ? I think there is a problem with Library Path or sort of something like that.
Please help me.
-- Niranjan

Answer 1

providing source code for the EXE program doesn't tell your problem.
You have to be more specific. What is your problem?