I am willing to purchase the licensed version of ScreenScraper studio. Kindly help me to achieve this.
You can't buy the ScreenScraper Studio because it appears to be discontinued. The only page on the official domain lists WebScapperX which is used for something else. You have two choices now:
Send an inquiry to the developers and ask them about the status of the application using the following email address**: firstname.lastname@example.org**
Install another application from the same category. You can use Greenshot for example.