Where should I enter the License Key I got after purchase?
After you make a purchase and your order is processed, you should receive an automatic registration e-mail with your Registration Name and License Key. To register your evaluation copy, you need to do the following:
Where can I get the version number and license key of my iSpring Suite?
On the iSpring Suite toolbar, click the Help button and choose About in the menu. 
How can I optimize the output content for publishing to the web?
It is important to make your content compact for web publishing.
After publishing, I got a large output file. How can I decrease its size?
Embedded images, audio and video files can significantly increase the output file size. You can make the output file smaller by choosing the output quality which lets you change the images, audio, and video compression.
I don't see iSpring Suite toolbar in PowerPoint. What can I do?
If the iSpring add-in has disappeared from your PowerPoint ribbon, you can easily bring it back in a few simple steps.