This function frees the storage allocated by the file dialog when the dialog flag is set.

#define INCL_winstdfile
#include <os2.h>

PAPSZ    papszFQFilename;  /*  Pointer to a table of pointers of fully-qualified file names returned by the dialog. */
BOOL     rc;               /*  Success indicator. */

rc = WinFreeFileDlgList(papszFQFilename);