After you download Lead Finder Software, make sure to unzip/extract it first and then run the .jar file.
If you don't have any extraction software installed, you may download a free file extraction software called "WinRar" from the link below:
www.win-rar.com
Also, Lead Finder Software JAR file needs latest Java version.
https://www.java.com/en/download/
Be sure to install the latest JAVA and then restart your computer.
You can also check the attached file here for a more detailed instructions on how to extract the Lead Finder Software.
If you're still having issues, kindly open up a Support Ticker or send us an email at support@videomakerfx.com.
Thank you!