Clipper Program Terminates when printing reports in Windows 7

Clipper Program Terminates when printing reports in Windows 7
I am currently maintaining the clipper program which is running under the DOS Interface.
Before we are using Windows98 and the system was installed before I was employed in this company.
The programs work fine until before we upgrade our computers and migrate to Windows 7 operating system.
The program still running but in some parts like creating of reports, the program terminates itself and return to DOS prompt.
Anyone here knows how to solve the issue?
Thanks!
