You have installed the Connectivity Pack on a drive other than the C drive, or in or in a directory other than CPACK. This is okay if the APP95 program can find where you've put the Connectivity Pack modules. To find them it looks to the DOS environment for a variable named PIMS which should be set with the path to the Connectivity modules. The command to define this variable is the following: SET PIMS=C:\CPACK (replace C:\CPACK with your installation location).
To display the current values of the DOS environment file, type SET at the DOS prompt. PATH and PIMS should both contain the path to the Connectivity Pack software.
The SET PIMS command should be in the AUTOEXEC.BAT file. The problem may be that the SET PIMS command is not executed during the start-up process because it is preceded by the execution of another program. To fix this, put the SET PIMS command closer to the beginning of the AUTOEXEC.BAT file. After this is changed, save the AUTOEXEC.BAT file and reboot the PC. After rebooting, type APP95 and press (ENTER).