Too Many Open Files

NOTE: Due to the ever-increasing compatibility problems with newer printers and newer versions of Windows it is strongly recommended that you upgrade to one of the Windows versions of The THERAPIST. Check out the comparison page to see what is the same and what is different. You can also download a free evaluation of either The THERAPIST EZ or The THERAPIST Pro or contact customer service to free evaluation CD.

DOS programs are only allowed to open a set number of files at a time. A configuration setting controls what the maximum number is. When the configuration setting is too low, you will get this error when running The THERAPIST.

In DOS and in Windows 3.x, 95, and 98, the configuration setting is a line in the CONFIG.SYS file located in the root folder of drive c:. The setting is usually set correctly during installation but it is possible that the file was changed by another program or by system upgrades.

To correct the setting, go to the Start Button and select Run. Type:


When you click Ok, it will open the System Configuration Editor with several cascading windows. Click on the window that says C:\CONFIG.SYS. Look for a line that starts with FILES= (capitalization doesn't matter). Make sure the number following the equal sign is at least 120.

In the same manner look for a line starting with BUFFERS= and make the number following the equal sign at least 60.


Save the file and close it. The change will be effective after you restart your computer.

The configuration setting for Windows NT, 2000, and XP is discussed in a separate article titled Installing in Windows NT, 2000, or XP.