[Desktop application interceptor]

I need  help, i received an assignment to complete security testing on "Windows Desktop application"

 

I verified the file level of security and binary code review but i want to do interception of request and response

 

but am literally struck, in google found some tools like Echo-mirage and Wireshark

 

- While attaching echo-mirage tool to my desktop application it showing message like "A Problem caused the program to stop working correctly windows will close the program and notify you if a solution is available."

 

- Whireshark : am not getting proper idea on

 

Thanks in advance, your response is highly appreciated.