How to crack the OS/2 WARP test CD-ROM with it's own files

For the timelimited 45 day's version of IBM`s OS/2 WARP 
You can patch the installed version with some files that 
are on the install CD-ROM. 
Just follow the upcoming commands to patch your test-
version to the real OS/2 WARP without 45 day's limit:

-  Boot up MS-DOS  (not DOS-task! real dos)
  
-  Change to the CD-ROM drive and go into /DISKIMGS 
  
-  Put a formatted HD disk into drive A: and enter:
   MAKEDSKF DISK1_CD.DSK A:

-  Delete the following files from C:\OS2\DLL:
     DOSCALL1.DLL
     KBDCALLS.DLL
     VIOCALLS.DLL

-  Copy these files from the DISK A: to C:\OS2\DLL:
     DOSCALL1.DLL
     KBDCALLS.DLL
     VIOCALLS.DLL

And the OS/2 WARP 45 day's version is now the same as 
the offical OS/2 WARP CD-ROM version.

(It only works with the first release of the 45 day's version)
