I have been trialling a modified version of the DosBox project which runs an old DOS Pascal project written by a student of mine - pasform. Essentially the project formats Pascal programs in a house style that we used at the institution where I taught. The project launches in Web browser OK and appears to open and process the input file. However, it does not appear to write the result to an output file. The input file is Test1.pas. Any output filename should work, e.g. T.pas. Does QP Dosbox project currently support writing a file (security level permitting)? The file permissions on the output folder is read/write but not execute.