Wont work if you installed it for studio.

Up to genesis carrara used the Poser runtime configuretion, not the Studio content configuration. Carrara can't read studio files previous to genesis; file formats previos to DUF.

Now it used to be mil 4 figures had to be installed in the same folder as your Poser exe was. Installing it the studio "my library" folder may have solved this, but if you install in studio format carrara wont be able to read the studio mat files for skinning the character.

{note: the easy quick fix was just to create a new folder then name it Poser.exe}

This is more of a carrara question then a studio one. But hey, you might get lucky and have it work with no issues. None the less if you intend to use DAZ and other content in carrara it doesn't work the same as it does in Studio.