php.exe has generated some errors and will be closed by windows

Hi friends, I am getting the problem everytime "php.exe has generated some errors and will be closed by windows". I kept header function after completion of authentication to navigate to the corresponding page. I am facing this problem every time. If I remove that header function once and by running it one time and again by keeping the same header function again then it z working properly. How can I overcome this problem?? Any help greatly appreciable. Thanks in advance. -Balaji

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