Compressed file (packed EXE) in WIX/MSI package increase MSI size by twice

I have simple WiX MSI installer script. This script generate package what deploy only one exe file. This开发者_如何学Go file is Java application wrapped to exe file. Overall size of this exe is 10MB. Unfortunately when I get builded MSI final size of MSI increased by twice - e.g. 20MB.

I tried to change attribute Media/CompressionLevel to none/high/low/mszip - but can get acceptable MSI size.

Please help - I need get uncompressed MSI with similar to deployed exe size +/- 3-4 MB!

Thank you !

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Windows Installer natively only supports some pretty basic compression formats. You might want to give InstallAware's Setup Squeezer a try.