7z DLLs

The following table shows the features supported by each shared library from the 7-zip project.

Shared Library (.dll or .so)	Compression	Extraction	Archive Encryption	Header Encryption	Archive Decryption
7z	✔️	✔️	✔️¹	✔️²	✔️³
7za²	✔️	✔️	✔️	✔️	✔️
7zra²	✔️	✔️	❌	❌	❌
7zxa²	❌	✔️	❌	❌	✔️
7zxr²	❌	✔️	❌	❌	❌

¹ Only 7z and zip formats.
² Only 7z format.
³ Only 7z, zip, and rar formats.

How to build the DLLs

TODO