I don't think that's a normal abbreviation. If you Google "DLLS" all the results are about DLLs (and that's obviously not because dollars are an obscure technical term). Maybe you were thinking of USD?
Ha, ha. I also thought we were talking about Dynamically Loaded Libraries and I couldn't remember a time when Windows would show me how many DLLs I had loaded or stop me with, "Sorry, too many DLLs loaded". :P
Unlike extensions on Macintosh that showed up on the start up screen as they loaded!
What language is that? The only abbreviation I've ever seen is USD (the three non-romance languages I speak a little of use a variation on "dollar" which, by context, is always clearly USD.)