If you has installed KT200 software, but cannot open it normally, even if reinstall the software, and receive the error prompt ‘Cannot find DFB2XX.dll. Please, re-install this application’. The best solution is to replace the DFB2XX.dll file.
The solution offered by eobdtool.co.uk engineer:
Free download DFB2XX.dll file
Unzip the folder
Copy dtb2xx.dll file and to C:\Windows\SysWOW64 directory
If your computer system is 32bit, copy the file and paste to C:\Windows\System32 directory