Microsoft KB Archive/86171

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Differences Between Retail and Debug versions of Windows 3.1

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Q86171

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The information in this article applies to:


 * Microsoft Windows versions 3.1, 3.11

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SUMMARY
This article outlines some of the differences between the retail and dubugging (debug) versions of Microsoft Windows version 3.1.

MORE INFORMATION
The retail version of Windows 3.1 can be transformed into the debug version by using files that are provided with the Windows 3.1 Software Development Kit (SDK).

NOTE: Windows will be slower when the debug version is installed.

The debug version of Windows consists of the following files:

  KRNL286  SYM      4308 03-23-92   3:10a KRNL386 SYM      4340 03-23-92   3:10a MMSYSTEM SYM     5428 03-23-92   3:10a GDI     SYM      6004 03-23-92   3:10a USER    SYM     11620 03-23-92   3:10a MMSYSTEM DLL    66656 03-23-92   3:10a KRNL286 EXE    110550 03-23-92   3:10a KRNL386 EXE    116132 03-23-92   3:10a GDI     EXE    275261 03-23-92   3:10a USER    EXE    338406 03-23-92   3:10a The .SYM files are symbol files that contain symbolic information that the SDK utility programs, CodeView (CVW.EXE), and Windows 80386 Debugger (WDEB386.EXE) use to locate program modules, global data in an executable, and other debugging information. The .SYM files can remain in the Windows \SYSTEM directory (they do not affect the performance of Windows when the retail Windows 3.1 system files are being used). The .DLL and .EXE files are special debugging versions of the normal files that replace the corresponding retail Windows files in the Windows \SYSTEM directory.

Below is a list of the normal files that must be present in the Windows \SYSTEM directory to run the retail version of Windows 3.1:

  GDI      EXE    220800 03-10-92   3:10a KRNL286 EXE     71730 03-10-92   3:10a KRNL386 EXE     75490 03-10-92   3:10a USER    EXE    264016 03-30-92  10:49a MMSYSTEM DLL    61648 03-10-92   3:10a

Identifying Debug Windows
If the debug version of Windows is running, a message specific to the debug mode (standard or enhanced) is displayed in the bottom-right corner of the Windows desktop. These messages appear as follows:

"ENHANCED MODE DEBUG Windows 3.1" -or-

"STANDARD MODE DEBUG Windows 3.1"

How to Switch Between Debug and Retail Windows
There are two batch files, D2N.BAT and N2D.BAT, that are provided with the SDK that allow you to switch between the retail and debug versions of Windows 3.1. These files are normally found in the WINDEV\BIN directory. N2D.BAT is used to convert retail Windows into debug Windows. D2N.BAT is used to convert debug Windows to retail Windows.

Changes Made to SYSTEM.INI
The following lines are added to the SYSTEM.INI file when the SDK is installed:

  DEVICE=C:\WINDEV\BIN\VCV.386 DEVICE=C:\WINDEV\BIN\WINDEBUG.386 KBCategory: kbusage kbother

KBSubcategory: win31

Additional query words: 3.11 3.10 sdk de-bug

Keywords :

Issue type :

Technology : kbWin3xSearch kbWin310 kbWin311