Okay, I've solved it ...
For some odd reason the current working directory was /Users/MYPROFILE.
[NO, I'M NOT GIVING YOU MY HOME FOLDER NAME.]
This probably only works for Macs .
I made the output and it was in ~, so I tried with the input and it worked.
I Developed application in C# with crystal reports and created setup file in third party (Advance) Installer.When i installed my application on client system application is working but ...