http://bugs.winehq.org/show_bug.cgi?id=425
--- Comment #23 from Dmitry Timoshkov dmitry@codeweavers.com 2009-10-28 04:49:31 --- (In reply to comment #22)
Can 'wine notepad' open and save that file?
To answer, wine SEEMS to work, for example notepad can read and write mydoc.txt I presume the problem is from open read/write close file function with protection reading/writing by other user
How is that related to UNC file names? Looks like a simple misconfiguration on your side, permissions related.
(API who is not used by API windows but can be used by professionnal program to enhance speed) EG: if (hf=open(nomfile,O_RDWR|O_BINARY|O_CREAT)==-1) return FFAILURE; idem with flock,locking,lseek ... This code don't work under wine (but work since 15years under win32)
That has nothing to do with UNC, please file a separate bug for it, and attach the source code demonstrating the problem there.