| Library | Language | FileName | DebugVersion | Description |
| UA Stack | ANSI C | uastack.lib | uastackd.lib | UA communication stack. Like DCOM in OPC DA. |
| UA Base Library | C++ | uabase.lib | uabase.lib | UA C++ base library. Encapsulates all UA data types |
| UA PKI Library | C++ | uapki.lib | uapkid.lib | UA PKI library based on OpenSSL. For certificate handling. |
| UA XML Library | C++ | xmlparser.lib | xmlparserd.lib | UA XML library. C++ interface encapsulatingLibXML2. |
| UA Client Library | C++ | uaclient.lib | uaclientd.lib | UA C++ client library. Base functionality for client applications |
| UA Core Module | C++ | coremodule.lib | coremoduled.lib | UA core module. Core for OPC Servers. |
| UA Module | C++ | uamodule.lib | uamoduled.lib | UA communication module for OPC servers. |
| OpenSSL | ANSI C | libeay32.lib in out32dll | libeay32d.lib in out32dll.dbg | |
| LibXML2 | ANSI C | libxml2.lib in out32dll | libxml2d.lib in out32dll.dbg | |
| Winsock2 Library | C | ws_32.lib | - | MS Windows Socket Library. Needed for berkley socket functions. |
| RPC | C | rpcrt4.lib | - | MS Windows RPC Library. Needed for UuidCreate. |
| Windows crypto library | C | crypt32.lib | - | MS Windows crypto library. Needed for access to Windows certificate store. |
