How does one override the default pdf viewer for MKIV Standalone on Windows 7-64 so --autopdf starts Acrobat Reader instead of "sumatrapdf.exe"? I don't have "sumatra" and do not wish to install it just to satisfy this one application. WTH is it anyway? (I know what it is, it's a rhetorical question). Making some obscure pdf viewer the default with no clear way to change it is not a good idea. For Windows, the vast majority of people have Acrobat Reader which is very often preinstalled. For Linux, it's less clear what the default should be but {xpdf |evince|acroread} are quite common. Can't speak to OSX as I've never used it but I'd bet a coffee Acrobat Reader is (or can be) there, too. I have searched through the source and tried editing l-pdf.lua but that doesn't seem to fix the problem. I shouldn't have to edit system source in any event. Mark me frustrated. -- Bill Meahan Westland, Michigan "The nice thing about standards is there are so many of them." -- Henry Spencer