Technially kMCStringEncodingNative is the tag for the encoding that LiveCode internally decides to use as the native encoding. Here the CF_TEXT format mandates the encoding - which is assumed to be Windows-1252 as that is the codepage the Windows build of the engine is set to use (which is distinct, albeit the same at the moment, as the native encoding for the engine).... Of course technically, there is a bug here - this code should really be checking for a CF_LOCALE entry on the clipboard too and reading the encoding from that (see the Publish method in the same file).