<CPackWiXPatch>
    <!--  Fragment ID is from: <your build dir>/_CPack_Packages/win64/WIX/files.wxs -->
    <CPackWiXFragment Id="CM_CP_bin.nvim.exe">
      <Environment
        Id='UpdatePath'
        Name='PATH'
        Action='set'
        Permanent='no'
        System='yes'
        Part='last'
        Value='[INSTALL_ROOT]bin'
      />
    </CPackWiXFragment>
</CPackWiXPatch>
