This macro
Code:
^C^C^P(or NewStyle (load "NewStyle.lsp"))(or(tblsearch "style" "Arial")(NewStyle "Arial" "arial.ttf")) (or LM:LoadLinetypes (load "LoadLinetypesV1-1.lsp"))(LM:LoadLinetypes '("ArialDOT" "ArialDOT2" "ArialDOTX2" "ArialARROW") T)
first loads "NewStyle.lsp" if needed then adds Text Style "Arial" if needed. Then loads Lee Mac's LoadLinetypesV1-1.lsp (if needed) and uses it to load the linetypes "ArialDOT", "ArialDOT2", "ArialDOTX2", and "ArialARROW" from Arial.lin saved in the "Roamable Support Folder" where Acad.lin and CUIX files are.
More examples on Lee Mac's website under Programs.