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+# WixToolset.WixStandardBootstrapperApplicationFunctionApi
+
+WixToolset.WixStandardBootstrapperApplicationFunctionApi contains the SDK for building **BAFunctions** extensions for WixStdBA, the WiX Standard Bootstrapper Application for Burn bootstrapper bundles.
+
+BAFunctions are native-code DLLs (typically written in C++) that let you supplement the behavior of WixStdBA, rather than writing an entirely new BA to tweak existing BA behavior.
+
+## Sources
+https://github.com/wixtoolset/wix/tree/HEAD/src/ext/Bal/wixstdfn
+
+## Samples
+https://github.com/wixtoolset/wix/tree/HEAD/src/ext/Bal/Samples/bafunctions