Error: error.TNT:20074: (when opening DOS-based CAD program due to Pharlap.386).
Error:
error.TNT:20074: cannot use -REALBREAK under this version of DPMI
Cause:
This error mostly occurs when running MS-DOS-based CAD programs such as AutoCAD. The Pharlap.386 driver is not loaded in SYSTEM.INI. These types of programs will not run without this driver.
Solution:
Edit System.ini and add device=X:\PHARLAP.386
(where 'X:' is the path to the Pharlap.386 file).
1) Click the 'Start' button to display the 'Start' menu and select 'Run...'. (The 'Run' dialog box appears.)
2) Type the following in the 'Open' drop-down list box:
SYSTEM.INI
3) Click 'OK'. (System.ini opens)
4) Make a backup copy of System.ini:
a) Select the 'File' menu and select 'Save As...'. (The 'Save As' dialog box appears.)
b) Type the following in the 'File name' box:
SYSTEM.BAK
c) Click 'Save'.
5) Locate the [386Enh] section, and type the following line:
device=<X>:\PHARLAP.386
(where '<X>:' is the path to Pharlap.386).
6) Select the 'File' menu and select 'Save As...' (The 'Save As' dialog box appears.)
7) Type the following in the 'File name' box:
SYSTEM.INI
8) Click 'Save'.
9) Exit Windows.
10) Restart Windows and the DOS-based application.