On Jan 27, 2008, at 6:32 AM, Steve wrote: > So now that I can Iterate a folder using FSrefs, I would like to > know what is the fastest way to access a specific file in a > designated folder. The folder may contain many thousands of files. When you say "access a file" I assume you mean how do I obtain an FSRef to an existing file? I assume you already know how to access the file given an FSRef, right? Assuming that is correct, would you detail the specific conditions? In other words, can we allow the user to pick it via a Nav Services dialog? Must the program find it on its own without any user intervention? Is there a starting point (i.e. starting directory) available? Please detail this if possible , and I'd really like to see the corresponding WD code used to find the file under the same conditions. I don't have the time in the next few days to write a general treatise, but an example for a more precise target might be doable. > > Using those god awful working dirIDs vref hacks with FB, it was > very easy to do. See preceding comment. Show me the WD code and describe the precise conditions encountered. > > Brian, you showed me how to get at one file by name, inside a > folder inside the Documents folder, using the Fn IterateFolder. I > can create an array of FSRef of each file when iterating the > folder, then lookup the file in that array and use the FSRef, If I understand correctly, it sounds like the code might be doing an unnecessary step. If you know the name of the file to lookup in an array, just pass the file name to the iteratefolder fn and have it return the FSRef for that file. No need to fill the arrays and then search the arrays. I probably missed something here (or don't understand the question enough) since you would have thought of that. Cheers... Brian S.