diff -ru neon27-0.29.6.orig/src/ne_acl3744.c neon27-0.29.6/src/ne_acl3744.c
--- neon27-0.29.6.orig/src/ne_acl3744.c	2008-10-15 03:19:41.000000000 +0800
+++ neon27-0.29.6/src/ne_acl3744.c	2019-11-05 10:54:29.081951809 +0800
@@ -160,6 +160,9 @@
     ne_request *req = ne_request_create(sess, "ACL", uri);
     ne_buffer *body = acl_body(entries, numentries);
 
+    /* note: NOT SURE if translate:f required here, have not seen this request */
+    ne_add_request_header(req, "translate", "f");
+
 #ifdef NE_HAVE_DAV
     ne_lock_using_resource(req, uri, 0);
 #endif
diff -ru neon27-0.29.6.orig/src/ne_basic.c neon27-0.29.6/src/ne_basic.c
--- neon27-0.29.6.orig/src/ne_basic.c	2008-02-08 07:22:07.000000000 +0900
+++ neon27-0.29.6/src/ne_basic.c	2019-11-05 10:54:29.061951808 +0800
@@ -58,6 +58,7 @@
 
     ret = ne_request_dispatch(req);
 
+    /* note: no translate:f required here (based on comms with MS IIS 7.5) */
     value = ne_get_response_header(req, "Last-Modified"); 
 
     if (ret == NE_OK && ne_get_status(req)->klass != 2) {
@@ -102,6 +103,9 @@
     
     req = ne_request_create(sess, "PUT", uri);
 
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
+
 #ifdef NE_HAVE_DAV
     ne_lock_using_resource(req, uri, 0);
     ne_lock_using_parent(req, uri);
@@ -173,6 +177,9 @@
     ne_add_request_header(req, "Range", brange);
     ne_add_request_header(req, "Accept-Ranges", "bytes");
 
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
+
     ret = dispatch_to_fd(req, fd, brange);
 
     status = ne_get_status(req);
@@ -222,6 +229,9 @@
     ne_request *req = ne_request_create(sess, "GET", uri);
     int ret;
 
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
+
     ret = dispatch_to_fd(req, fd, NULL);
     
     if (ret == NE_OK && ne_get_status(req)->klass != 2) {
@@ -240,6 +250,8 @@
     ne_request *req = ne_request_create(sess, "POST", uri);
     int ret;
 
+    /* note: NOT SURE if translate:f required here, not checked */
+    ne_add_request_header(req, "translate", "f");
     ne_set_request_flag(req, NE_REQFLAG_IDEMPOTENT, 0);
 
     ne_set_request_body_buffer(req, buffer, strlen(buffer));
@@ -355,6 +367,10 @@
 int ne_options2(ne_session *sess, const char *uri, unsigned int *caps)
 {
     ne_request *req = ne_request_create(sess, "OPTIONS", uri);
+
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
+
     int ret = ne_request_dispatch(req);
     const char *header = ne_get_response_header(req, "DAV");
     
@@ -410,6 +426,10 @@
 {
     ne_request *req = ne_request_create( sess, is_move?"MOVE":"COPY", src );
 
+    /* note: translate:f required here (based on comms with MS IIS 7.5)
+       Only saw MOVE, I haven't seen a COPY request yet. */
+    ne_add_request_header(req, "translate", "f");
+
     /* 2518 S8.9.2 says only use Depth: infinity with MOVE. */
     if (!is_move) {
 	ne_add_depth_header(req, depth);
@@ -455,6 +475,9 @@
 {
     ne_request *req = ne_request_create(sess, "DELETE", uri);
 
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
+
 #ifdef NE_HAVE_DAV
     ne_lock_using_resource(req, uri, NE_DEPTH_INFINITE);
     ne_lock_using_parent(req, uri);
@@ -485,6 +508,9 @@
 
     req = ne_request_create(sess, "MKCOL", real_uri);
 
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
+
 #ifdef NE_HAVE_DAV
     ne_lock_using_resource(req, real_uri, 0);
     ne_lock_using_parent(req, real_uri);
diff -ru neon27-0.29.6.orig/src/ne_locks.c neon27-0.29.6/src/ne_locks.c
--- neon27-0.29.6.orig/src/ne_locks.c	2007-02-05 19:09:27.000000000 +0900
+++ neon27-0.29.6/src/ne_locks.c	2019-11-05 10:54:29.097951809 +0800
@@ -392,6 +392,9 @@
 {
     ne_request *req = ne_request_create(sess, "UNLOCK", lock->uri.path);
     int ret;
+
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
     
     ne_print_request_header(req, "Lock-Token", "<%s>", lock->token);
     
@@ -697,6 +700,9 @@
     ctx.req = req;
     ctx.parser = parser;
 
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
+
     /* LOCK is not idempotent. */
     ne_set_request_flag(req, NE_REQFLAG_IDEMPOTENT, 0);
 
@@ -784,6 +790,9 @@
     ctx.token = lock->token;
     ctx.parser = parser;
 
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
+
     /* Handle the response and update *lock appropriately. */
     ne_xml_push_handler(parser, lk_startelm, lk_cdata, lk_endelm, &ctx);
     
diff -ru neon27-0.29.6.orig/src/ne_oldacl.c neon27-0.29.6/src/ne_oldacl.c
--- neon27-0.29.6.orig/src/ne_oldacl.c	2008-10-15 03:19:41.000000000 +0800
+++ neon27-0.29.6/src/ne_oldacl.c	2019-11-05 10:54:29.085951809 +0800
@@ -113,6 +113,10 @@
     ne_request *req = ne_request_create(sess, "ACL", uri);
     ne_buffer *body = acl_body(entries, numentries);
 
+    /* note: NOT SURE if translate:f required here, have not seen this request */
+    ne_add_request_header(req, "translate", "f");
+
+
 #ifdef NE_HAVE_DAV
     ne_lock_using_resource(req, uri, 0);
 #endif
diff -ru neon27-0.29.6.orig/src/ne_props.c neon27-0.29.6/src/ne_props.c
--- neon27-0.29.6.orig/src/ne_props.c	2008-01-31 01:38:19.000000000 +0900
+++ neon27-0.29.6/src/ne_props.c	2019-11-05 10:54:29.077951809 +0800
@@ -192,6 +192,9 @@
     ne_request *req = ne_request_create(sess, "PROPPATCH", uri);
     ne_buffer *body = ne_buffer_create();
     int n, ret;
+
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(req, "translate", "f");
     
     /* Create the request body */
     ne_buffer_czappend(body, "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n"
@@ -597,6 +600,9 @@
     ret->request = ne_request_create(sess, "PROPFIND", uri);
     ret->value = ne_buffer_create();
 
+    /* note: translate:f required here (based on comms with MS IIS 7.5) */
+    ne_add_request_header(ret->request, "translate", "f");
+
     ne_add_depth_header(ret->request, depth);
 
     ne_207_set_response_handlers(ret->parser207,