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_Problem Description
This is essentially a problem with your computer, even if it may be brand new and just out of the box.

During the installation of Delta Translator® (as well as numerous other software programs), an error message that specifically mentions the AUTOEXEC.NT file or the fact that the system file is not suitable for running MS-DOS programs is a clear indication that the required AUTOEXEC.NT file on your Windows® 2000, XP or Server 2003 system is either damaged, has become corrupted or is completely missing. The specific error message may be similar to: "C:\WINDOWS\SYSTEM32\AUTOEXEC.NT. The system file is not suitable for running MS-DOS and Microsoft windows application, choose 'Close' to terminate the application",

The AUTOEXEC.NT file is used by InstallShield®—a very common installation program used by Delta Translator® and thousands and thousands of other software programs. Many versions of InstallShield® make use of 16-bit Windows® technology and require that an AUTOEXEC.NT file be present and functioning on the system. The AUTOEXEC.NT file is part of the Windows® 16-bit subsystem and is normally part of any Windows® XP, 2000 or Windows® Server 2003 installation. On Windows® XP systems, for example, this file normally resides in the Windows/System32 sub directory.

If the AUTOEXEC.NT file on your system is damaged, corrupted or completely missing, you will be unable to install Delta Translator®—as well as NUMEROUS other software programs—on your computer that use InstallShield®. For some users, the installation of Windows® XP SP2 (Service Pack 2) may have actually deleted the AUTOEXEC.NT file! As a result, when attempting to run certain applications such as those used by InstallShield® (which use 16-bit technology), you may receive the error message similar to: "C:\WINDOWS\SYSTEM32\AUTOEXEC.NT. The system file is not suitable for running MS-DOS and Microsoft windows application, choose 'Close' to terminate the application".

_Solution
There are many ways around this problem but, quite frankly, without plowing through the often confusing details provided by Microsoft® and others elsewhere, the fastest, easiest and least cumbersome method is:

1. Open Windows® Explorer on your machine and find the Local Disk (C:)/Windows directory and then this directory's REPAIR sub directory (Local Disk C:/Windows/REPAIR).
2. On the right of the Windows® Explorer screen, you should see the AUTOEXEC.NT file listed as being resident in this Local Disk (C:)/Windows/REPAIR sub directory.
3. Copy this AUTOEXEC.NT file, then find your Local Disk (C:)/Windows/System 32 sub directory and paste it there.
4. Reboot (restart) your machine if necessary.

Important Notes:
To open Windows® Explorer:
> click the Start button on your Task Bar
> click All Programs
> click Accessories
> click Windows Explorer

While in Windows® Explorer and doing any of the above, you may need to show hidden files and folders before proceeding so as to be able view all the files resident in the various directories and sub directories on your system. To accomplish this while you have the Windows® Explorer window open:
> click Tools on the menu bar
> click Folder Options
> click the View tab
> scroll down to Hidden files and folders
> click show Hidden files and folders
> click OK

When you open Windows® Explorer to view files, you may also want to click both the View and Details options on the menu bar to enable you to see all file information instead of only icons.

If the AUTOEXEC.NT file is not resident in your Local Disk (C:)/Windows/REPAIR sub directory, just make a copy of an AUTOEXEC.NT file residing on any other Windows® XP, 2000 or Windows® Server 2003 system you may have access to (friend, coworker, etc.) and, then, copy it directly in your Local Disk (C:)/Windows/System 32 sub directory.

Pasting a copy of the AUTOEXEC.NT file copied from your Local Disk (C:)/Windows/REPAIR sub directory or any other source directly into your Local Disk C:/Windows/System 32 sub directory and, then, rebooting your computer should completely solve the problem and allow you to install Delta Translator® as well as any other software programs that use the InstallShield® installation program and/or makes use of 16-bit Windows® technology.

_More Information
For further information about this problem (in English) as well as Microsoft's instructions about how to add the AUTOEXEC.NT file to your system by using your Windows® XP, 2000 or Server 2003 (operating system) CD-ROM, please visit the Microsoft® site at: http://support.microsoft.com/default.aspx?scid=kb;en-us;324767