BgImage during installing files!

During installing files,how to add some background images to splash the screen?
Like the sample "$NSISDIR\NSIS\Examples\BgImage"

the same question:
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How to implement that the process of installing files goes with some background images?
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The example you pointed shows you exactly how to do that. What's the problem?

Originally posted by kichik
The example you pointed shows you exactly how to do that. What's the problem?

Can I use the BgImage in MUI?

Yes.