You will need to use Google to download Comdlg32.ocx file. You will need to place this file in SYSTEM32 and SysWOW64, then run the following commands using Start > Run:
regsvr32 %Systemroot%\SysWOW64\comdlg32.ocx
and
regsvr32 %Systemroot%\System32\comdlg32.ocx
After you've completed this process, start the application again and it will work as it's not required to restart the computer.