What is CPRS?
From VistApedia
CPRS is an acronym that stands for Computerized Patient Record System.
The CPRS program is actually a separate Microsoft Windows executable. Before version 26, it was only a program named CPRSChart.exe that could be anywhere on your system. Since CPRS usually needs to know how to contact the VistA server, most people use a shortcut to start it. After version 26, a separate DLL is also required named "BORLNDMM.DLL" which handles some memory management for CPRS.
There is also information is available at the CPRS Overview page on this wiki.