Extract the uniSWFConverterSourceSnapshot-xxxx(xx-xxxxxxxx).zip file.
Update bat/SetupSDK.bat to reflect your installation of the flexsdk eg.
:: Path to Flex SDK set FLEX_SDK=C:\Program Files (x86)\FlashDevelop\Tools\flexsdk
Generate an air certificate by running bat/CreateCertificate.bat
Open uniSWF-client-flashdevelop.as3proj in Flash Develop, then go Project->Test Project ( F5 Key ), this should open a debug verion of the converter and can be used for development.
To build the air package for internal distribution uninstall any existing copies of the uniSWF converter application( certificate upgrade will fail )
Build a release version of the project using Flash Develop, this should output the file bin/uniSWFPro.swf
Run PackageAppPro.bat to generate the air package.
Open air/uniSWFPro.air to install the package