diff -ur rsync-2.4.3.orig/rsync.c rsync-2.4.3.cygwin/rsync.c
--- rsync-2.4.3.orig/rsync.c	Sat Jan 29 03:35:03 2000
+++ rsync-2.4.3.cygwin/rsync.c	Thu Jun 29 11:59:55 2000
@@ -240,9 +240,17 @@
 
 	/* move tmp file over real file */
 	if (robust_rename(fnametmp,fname) != 0) {
-		if (errno == EXDEV) {
-			/* rename failed on cross-filesystem link.  
-			   Copy the file instead. */
+#ifdef __CYGWIN__
+		if (errno == EXDEV || errno == EACCES)
+			/* rename failed on cross-filesystem link
+			or destination may be open in shared mode by other application.
+			   Copy the file instead. */
+#else
+		if (errno == EXDEV)
+			/* rename failed on cross-filesystem link
+			   Copy the file instead. */
+#endif
+		{
 			if (copy_file(fnametmp,fname, file->mode & INITACCESSPERMS)) {
 				rprintf(FERROR,"copy %s -> %s : %s\n",
 					fnametmp,fname,strerror(errno));
diff -ur rsync-2.4.3.orig/util.c rsync-2.4.3.cygwin/util.c
--- rsync-2.4.3.orig/util.c	Sat Apr  8 19:53:31 2000
+++ rsync-2.4.3.cygwin/util.c	Thu Jun 29 12:11:01 2000
@@ -316,13 +316,17 @@
 		return -1;
 	}
 
+#ifndef __CYGWIN__
 	if (robust_unlink(dest) && errno != ENOENT) {
 		rprintf(FERROR,"unlink %s: %s\n",
 			dest,strerror(errno));
 		return -1;
 	}
-
 	ofd = do_open(dest, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, mode);
+#else
+	ofd = do_open(dest, O_WRONLY | O_CREAT | O_TRUNC, mode);
+#endif
+
 	if (ofd == -1) {
 		rprintf(FERROR,"open %s: %s\n",
 			dest,strerror(errno));