## Using Your DDK

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### Debuggers

Tool Description:

The OS/2 for Windows Refresh Debug Kernel is a special kernel that is required if your system is running OS/2 for Windows MR1 version. Please note that installation of this debug kernel requires more steps than that of the other debug kernels.

To install, place the DDK CD-ROM into the CD-ROM drive and enter the following commands from the command line:

        d:

        cd \DDK\MISCTOOL\KDEBUG\DEBUG

        CDINST d c

Where: d: is the drive letter of the DDK CD-ROM or the remote disk containing all levels of the OS/2 Debug Kernel.

c: is the drive letter where OS/2 2.x is installed.

After CDINST completes without errors, enter the following commands before shutting down and rebooting the system, in order to install the correct level of files required for debugging support.

         ATTRIB -S -H -A -R C:\OS2KRNL

         COPY D:\DDK\MISCTOOL\KDEBUG\DEBUG\Z_629\OS2KRNLD C:\OS2KRNL

         ATTRIB +S +H +A +R C:\OS2KRNL

         COPY D:\DDK\MISCTOOL\KDEBUG\DEBUG\Z_629\OS2KRNL.SYM C:\

         XCOPY D:\DDK\MISCTOOL\KDEBUG\DEBUG\Z_629\OS2 C:\OS2 /S /V

Where: D is the drive letter of the DDK CD-ROM or the remote disk containing all levels of the OS/2 Debug Kernel.

C is the drive letter where OS/2 2.x is installed.

Now shut down and reboot the system in order for the changes to take effect .

To access this program, select the debug kernel from The Developer Connection Catalog. You will be given the choice of viewing information about the product, trying the product (if applicable), or installing the product.