I have Windows 10, the software states that it cannot be downloaded. Do you have the program's upgrade for Windows 10?
I have checked the official website, but couldn't find anything related to the Windows 10. However, I installed the application on WIndows 8.1 x64 and received the same error with the GDIPLUS file.
Install the application normally and then use the Google Search to obtain the DLL file. Place it in the installation directory and you will have the possibility of saving to GIF and JPEG.
Download software: http://www.sandscomputing.com/id47.html