diff --git a/Makefile.am b/Makefile.am
index 61cc5ec16..24a5b1467 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -294,6 +294,8 @@ vc-ide: $(VC6_LIBDSP_DEPS) $(VC6_SRCDSP_DEPS) $(VC7_LIBVCPROJ_DEPS)	\
 	@(win32_lib_srcs='$(LIB_CFILES)'; \
 	win32_lib_hdrs='$(LIB_HFILES) config-win32.h'; \
 	win32_lib_rc='$(LIB_RCFILES)'; \
+	win32_lib_vauth_srcs='$(LIB_VAUTH_CFILES)'; \
+	win32_lib_vauth_hdrs='$(LIB_VAUTH_HFILES)'; \
 	win32_lib_vtls_srcs='$(LIB_VTLS_CFILES)'; \
 	win32_lib_vtls_hdrs='$(LIB_VTLS_HFILES)'; \
 	win32_src_srcs='$(CURL_CFILES)'; \
@@ -304,6 +306,8 @@ vc-ide: $(VC6_LIBDSP_DEPS) $(VC6_SRCDSP_DEPS) $(VC7_LIBVCPROJ_DEPS)	\
 	\
 	sorted_lib_srcs=`for file in $$win32_lib_srcs; do echo $$file; done | sort`; \
 	sorted_lib_hdrs=`for file in $$win32_lib_hdrs; do echo $$file; done | sort`; \
+	sorted_lib_vauth_srcs=`for file in $$win32_lib_vauth_srcs; do echo $$file; done | sort`; \
+	sorted_lib_vauth_hdrs=`for file in $$win32_lib_vauth_hdrs; do echo $$file; done | sort`; \
 	sorted_lib_vtls_srcs=`for file in $$win32_lib_vtls_srcs; do echo $$file; done | sort`; \
 	sorted_lib_vtls_hdrs=`for file in $$win32_lib_vtls_hdrs; do echo $$file; done | sort`; \
 	sorted_src_srcs=`for file in $$win32_src_srcs; do echo $$file; done | sort`; \
@@ -314,10 +318,11 @@ vc-ide: $(VC6_LIBDSP_DEPS) $(VC6_SRCDSP_DEPS) $(VC7_LIBVCPROJ_DEPS)	\
 	awk_code='\
 function gen_element(type, dir, file)\
 {\
+  sub(/vauth\//, "", file);\
   sub(/vtls\//, "", file);\
 \
   spaces="    ";\
-  if(dir == "lib\\vtls")\
+  if(dir == "lib\\vauth" || dir == "lib\\vtls")\
     tabs="				";\
   else\
     tabs="			";\
@@ -371,6 +376,14 @@ function gen_element(type, dir, file)\
     split(lib_rc, arr);\
     for(val in arr) gen_element(proj_type, "lib", arr[val]);\
   }\
+  else if($$0 == "CURL_LIB_VAUTH_C_FILES") {\
+    split(lib_vauth_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vauth", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VAUTH_H_FILES") {\
+    split(lib_vauth_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vauth", arr[val]);\
+  }\
   else if($$0 == "CURL_LIB_VTLS_C_FILES") {\
     split(lib_vtls_srcs, arr);\
     for(val in arr) gen_element(proj_type, "lib\\vtls", arr[val]);\
@@ -414,6 +427,8 @@ function gen_element(type, dir, file)\
 		-v lib_srcs="$$sorted_lib_srcs" \
 		-v lib_hdrs="$$sorted_lib_hdrs" \
 		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
 		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
 		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
 		"$$awk_code" $(srcdir)/$(VC6_LIBTMPL) > $(VC6_LIBDSP) || { exit 1; }; \
@@ -432,6 +447,8 @@ function gen_element(type, dir, file)\
 		-v lib_srcs="$$sorted_lib_srcs" \
 		-v lib_hdrs="$$sorted_lib_hdrs" \
 		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
 		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
 		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
 		"$$awk_code" $(srcdir)/$(VC7_LIBTMPL) > $(VC7_LIBVCPROJ) || { exit 1; }; \
@@ -450,6 +467,8 @@ function gen_element(type, dir, file)\
 		-v lib_srcs="$$sorted_lib_srcs" \
 		-v lib_hdrs="$$sorted_lib_hdrs" \
 		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
 		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
 		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
 		"$$awk_code" $(srcdir)/$(VC71_LIBTMPL) > $(VC71_LIBVCPROJ) || { exit 1; }; \
@@ -468,6 +487,8 @@ function gen_element(type, dir, file)\
 		-v lib_srcs="$$sorted_lib_srcs" \
 		-v lib_hdrs="$$sorted_lib_hdrs" \
 		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
 		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
 		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
 		"$$awk_code" $(srcdir)/$(VC8_LIBTMPL) > $(VC8_LIBVCPROJ) || { exit 1; }; \
@@ -486,6 +507,8 @@ function gen_element(type, dir, file)\
 		-v lib_srcs="$$sorted_lib_srcs" \
 		-v lib_hdrs="$$sorted_lib_hdrs" \
 		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
 		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
 		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
 		"$$awk_code" $(srcdir)/$(VC9_LIBTMPL) > $(VC9_LIBVCPROJ) || { exit 1; }; \
@@ -504,6 +527,8 @@ function gen_element(type, dir, file)\
 		-v lib_srcs="$$sorted_lib_srcs" \
 		-v lib_hdrs="$$sorted_lib_hdrs" \
 		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
 		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
 		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
 		"$$awk_code" $(srcdir)/$(VC10_LIBTMPL) > $(VC10_LIBVCXPROJ) || { exit 1; }; \
@@ -522,6 +547,8 @@ function gen_element(type, dir, file)\
 		-v lib_srcs="$$sorted_lib_srcs" \
 		-v lib_hdrs="$$sorted_lib_hdrs" \
 		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
 		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
 		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
 		"$$awk_code" $(srcdir)/$(VC11_LIBTMPL) > $(VC11_LIBVCXPROJ) || { exit 1; }; \
@@ -540,6 +567,8 @@ function gen_element(type, dir, file)\
 		-v lib_srcs="$$sorted_lib_srcs" \
 		-v lib_hdrs="$$sorted_lib_hdrs" \
 		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
 		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
 		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
 		"$$awk_code" $(srcdir)/$(VC12_LIBTMPL) > $(VC12_LIBVCXPROJ) || { exit 1; }; \
@@ -558,6 +587,8 @@ function gen_element(type, dir, file)\
 		-v lib_srcs="$$sorted_lib_srcs" \
 		-v lib_hdrs="$$sorted_lib_hdrs" \
 		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
 		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
 		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
 		"$$awk_code" $(srcdir)/$(VC14_LIBTMPL) > $(VC14_LIBVCXPROJ) || { exit 1; }; \
diff --git a/lib/Makefile.Watcom b/lib/Makefile.Watcom
index b5928b842..cbc54cfc7 100644
--- a/lib/Makefile.Watcom
+++ b/lib/Makefile.Watcom
@@ -187,16 +187,17 @@ LIB_ARG  = $(OBJ_STAT)/wlib.arg
 
 OBJS1 = ./$(CSOURCES:.c=.obj)
 OBJS2 = $(OBJS1:vtls/=)
-OBJS3 = $(OBJS2: = ./)
-OBJS_STAT = $(OBJS3:./=$(OBJ_STAT)/)
-OBJS_DYN  = $(OBJS3:./=$(OBJ_DYN)/)
+OBJS3 = $(OBJS2:vauth/=)
+OBJS4 = $(OBJS3: = ./)
+OBJS_STAT = $(OBJS4:./=$(OBJ_STAT)/)
+OBJS_DYN  = $(OBJS4:./=$(OBJ_DYN)/)
 
 CURLBUILDH = ../include/curl/curlbuild.h
 RESOURCE   = $(OBJ_DYN)/libcurl.res
 
 DIRS = $(OBJ_BASE) $(OBJ_BASE)/stat $(OBJ_BASE)/dyn
 
-.c : vtls
+.c : vauth vtls
 
 all: $(CURLBUILDH) $(DIRS) $(TARGETS) .SYMBOLIC
 	@echo Welcome to libcurl
diff --git a/lib/Makefile.b32 b/lib/Makefile.b32
index 1914a9410..481386157 100644
--- a/lib/Makefile.b32
+++ b/lib/Makefile.b32
@@ -69,7 +69,7 @@ CC_FLAGS = -5 -O2 -tWM -w -w-aus -w-ccc -w-dup -w-prc -w-pro -w-rch -w-sig -w-sp
 LIBFLAGS = /C /P32
 LDFLAGS  = -q -lq -laa -tWD
 
-SRCDIR   = .;.\vtls
+SRCDIR   = .;.\vauth;.\vtls
 OBJDIR   = .\BCC_objs
 INCDIRS  = -I.;.\lib;..\include
 LINKLIB  = $(BCCDIR)\lib\cw32mt.lib $(BCCDIR)\lib\ws2_32.lib
@@ -115,10 +115,11 @@ LINKLIB  = $(LINKLIB) $(OPENSSL_PATH)\out32\ssleay32.lib $(OPENSSL_PATH)\out32\l
 # using explicit compilation build rules instead of implicit ones.
 
 NOHYPHEN1 = $(CSOURCES:-=_)
-NOHYPHEN2 = $(NOHYPHEN1:vtls/=)
+NOHYPHEN2 = $(NOHYPHEN1:vauth/=)
+NOHYPHEN3 = $(NOHYPHEN2:vtls/=)
 
-OBJECTS = $(NOHYPHEN2:.c=.obj)
-PREPROCESSED = $(NOHYPHEN2:.c=.int)
+OBJECTS = $(NOHYPHEN3:.c=.obj)
+PREPROCESSED = $(NOHYPHEN3:.c=.int)
 
 # Borland's command line compiler (BCC32) version 5.5.1 integrated
 # preprocessor has a bug which results in silently generating wrong
diff --git a/lib/Makefile.netware b/lib/Makefile.netware
index 789670fb4..ee7e87ce7 100644
--- a/lib/Makefile.netware
+++ b/lib/Makefile.netware
@@ -351,7 +351,7 @@ OBJS	:= $(patsubst %.c,$(OBJDIR)/%.o,$(strip $(notdir $(CSOURCES)))) $(OBJDIR)/n
 
 OBJL	= $(OBJS) $(OBJDIR)/nwlib.o $(LDLIBS)
 
-vpath %.c . vtls
+vpath %.c . vauth vtls
 
 all: lib nlm
 
diff --git a/lib/Makefile.vc6 b/lib/Makefile.vc6
index ba903c9db..18079f7c5 100644
--- a/lib/Makefile.vc6
+++ b/lib/Makefile.vc6
@@ -660,6 +660,9 @@ $(DIROBJ):
 {.\}.c{$(DIROBJ)\}.obj:
 	$(CC) $(CFLAGS) /Fo"$@"  $<
 
+{.\vauth\}.c{$(DIROBJ)\}.obj:
+	$(CC) $(CFLAGS) /Fo"$@"  $<
+
 {.\vtls\}.c{$(DIROBJ)\}.obj:
 	$(CC) $(CFLAGS) /Fo"$@"  $<
 
diff --git a/projects/Windows/VC10/lib/libcurl.tmpl b/projects/Windows/VC10/lib/libcurl.tmpl
index c56b57597..3fc696b97 100644
--- a/projects/Windows/VC10/lib/libcurl.tmpl
+++ b/projects/Windows/VC10/lib/libcurl.tmpl
@@ -2324,10 +2324,12 @@
   </ItemDefinitionGroup>
   <ItemGroup>
 CURL_LIB_C_FILES
+CURL_LIB_VAUTH_C_FILES
 CURL_LIB_VTLS_C_FILES
   </ItemGroup>
   <ItemGroup>
 CURL_LIB_H_FILES
+CURL_LIB_VAUTH_H_FILES
 CURL_LIB_VTLS_H_FILES
   </ItemGroup>
   <ItemGroup>
diff --git a/projects/Windows/VC11/lib/libcurl.tmpl b/projects/Windows/VC11/lib/libcurl.tmpl
index cd4bfbd38..52dc0a678 100644
--- a/projects/Windows/VC11/lib/libcurl.tmpl
+++ b/projects/Windows/VC11/lib/libcurl.tmpl
@@ -2380,10 +2380,12 @@
   </ItemDefinitionGroup>
   <ItemGroup>
 CURL_LIB_C_FILES
+CURL_LIB_VAUTH_C_FILES
 CURL_LIB_VTLS_C_FILES
   </ItemGroup>
   <ItemGroup>
 CURL_LIB_H_FILES
+CURL_LIB_VAUTH_H_FILES
 CURL_LIB_VTLS_H_FILES
   </ItemGroup>
   <ItemGroup>
diff --git a/projects/Windows/VC12/lib/libcurl.tmpl b/projects/Windows/VC12/lib/libcurl.tmpl
index 22b55c545..f9adccdd5 100644
--- a/projects/Windows/VC12/lib/libcurl.tmpl
+++ b/projects/Windows/VC12/lib/libcurl.tmpl
@@ -2380,10 +2380,12 @@
   </ItemDefinitionGroup>
   <ItemGroup>
 CURL_LIB_C_FILES
+CURL_LIB_VAUTH_C_FILES
 CURL_LIB_VTLS_C_FILES
   </ItemGroup>
   <ItemGroup>
 CURL_LIB_H_FILES
+CURL_LIB_VAUTH_H_FILES
 CURL_LIB_VTLS_H_FILES
   </ItemGroup>
   <ItemGroup>
diff --git a/projects/Windows/VC14/lib/libcurl.tmpl b/projects/Windows/VC14/lib/libcurl.tmpl
index 70e5f2ffb..208e8b6e0 100644
--- a/projects/Windows/VC14/lib/libcurl.tmpl
+++ b/projects/Windows/VC14/lib/libcurl.tmpl
@@ -2380,10 +2380,12 @@
   </ItemDefinitionGroup>
   <ItemGroup>
 CURL_LIB_C_FILES
+CURL_LIB_VAUTH_C_FILES
 CURL_LIB_VTLS_C_FILES
   </ItemGroup>
   <ItemGroup>
 CURL_LIB_H_FILES
+CURL_LIB_VAUTH_H_FILES
 CURL_LIB_VTLS_H_FILES
   </ItemGroup>
   <ItemGroup>
diff --git a/projects/Windows/VC6/lib/libcurl.tmpl b/projects/Windows/VC6/lib/libcurl.tmpl
index 74c8c9c32..669c09b41 100644
--- a/projects/Windows/VC6/lib/libcurl.tmpl
+++ b/projects/Windows/VC6/lib/libcurl.tmpl
@@ -729,12 +729,14 @@ LIB32=link.exe -lib
 
 # PROP Default_Filter ""
 CURL_LIB_C_FILES
+CURL_LIB_VAUTH_C_FILES
 CURL_LIB_VTLS_C_FILES
 # End Group
 # Begin Group "Header Files"
 
 # PROP Default_Filter ""
 CURL_LIB_H_FILES
+CURL_LIB_VAUTH_H_FILES
 CURL_LIB_VTLS_H_FILES
 # End Group
 # Begin Group "Resource Files"
diff --git a/projects/Windows/VC7.1/lib/libcurl.tmpl b/projects/Windows/VC7.1/lib/libcurl.tmpl
index f27782e53..054a74790 100644
--- a/projects/Windows/VC7.1/lib/libcurl.tmpl
+++ b/projects/Windows/VC7.1/lib/libcurl.tmpl
@@ -1267,6 +1267,20 @@ CURL_LIB_H_FILES
 			Filter="">
 CURL_LIB_RC_FILES
 		</Filter>
+		<Filter
+			Name="vauth"
+			Filter="">
+			<Filter
+				Name="Source Files"
+				Filter="">
+CURL_LIB_VAUTH_C_FILES
+			</Filter>
+			<Filter
+				Name="Header Files"
+				Filter="">
+CURL_LIB_VAUTH_H_FILES
+			</Filter>
+		</Filter>
 		<Filter
 			Name="vtls"
 			Filter="">
diff --git a/projects/Windows/VC7/lib/libcurl.tmpl b/projects/Windows/VC7/lib/libcurl.tmpl
index aa31f80f9..65b3ce744 100644
--- a/projects/Windows/VC7/lib/libcurl.tmpl
+++ b/projects/Windows/VC7/lib/libcurl.tmpl
@@ -1121,6 +1121,20 @@ CURL_LIB_H_FILES
 			Filter="">
 CURL_LIB_RC_FILES
 		</Filter>
+		<Filter
+			Name="vauth"
+			Filter="">
+			<Filter
+				Name="Source Files"
+				Filter="">
+CURL_LIB_VAUTH_C_FILES
+			</Filter>
+			<Filter
+				Name="Header Files"
+				Filter="">
+CURL_LIB_VAUTH_H_FILES
+			</Filter>
+		</Filter>
 		<Filter
 			Name="vtls"
 			Filter="">
diff --git a/projects/Windows/VC8/lib/libcurl.tmpl b/projects/Windows/VC8/lib/libcurl.tmpl
index b57c49f4e..aa2eb7d48 100644
--- a/projects/Windows/VC8/lib/libcurl.tmpl
+++ b/projects/Windows/VC8/lib/libcurl.tmpl
@@ -3628,6 +3628,20 @@ CURL_LIB_H_FILES
 			>
 CURL_LIB_RC_FILES
 		</Filter>
+		<Filter
+			Name="vauth"
+			>
+			<Filter
+				Name="Source Files"
+				>
+CURL_LIB_VAUTH_C_FILES
+			</Filter>
+			<Filter
+				Name="Header Files"
+				>
+CURL_LIB_VAUTH_H_FILES
+			</Filter>
+		</Filter>
 		<Filter
 			Name="vtls"
 			>
diff --git a/projects/Windows/VC9/lib/libcurl.tmpl b/projects/Windows/VC9/lib/libcurl.tmpl
index f3ec143b8..6d227fa48 100644
--- a/projects/Windows/VC9/lib/libcurl.tmpl
+++ b/projects/Windows/VC9/lib/libcurl.tmpl
@@ -3569,6 +3569,20 @@ CURL_LIB_H_FILES
 			>
 CURL_LIB_RC_FILES
 		</Filter>
+		<Filter
+			Name="vauth"
+			>
+			<Filter
+				Name="Source Files"
+				>
+CURL_LIB_VAUTH_C_FILES
+			</Filter>
+			<Filter
+				Name="Header Files"
+				>
+CURL_LIB_VAUTH_H_FILES
+			</Filter>
+		</Filter>
 		<Filter
 			Name="vtls"
 			>
diff --git a/winbuild/MakefileBuild.vc b/winbuild/MakefileBuild.vc
index 44076b9ba..d631204fe 100644
--- a/winbuild/MakefileBuild.vc
+++ b/winbuild/MakefileBuild.vc
@@ -436,6 +436,7 @@ $(DIRDIST):
 
 $(LIB_DIROBJ):
 	@if not exist "$(LIB_DIROBJ)" mkdir $(LIB_DIROBJ)
+	@if not exist "$(LIB_DIROBJ)\vauth" mkdir $(LIB_DIROBJ)\vauth
 	@if not exist "$(LIB_DIROBJ)\vtls" mkdir $(LIB_DIROBJ)\vtls
 
 $(CURL_DIROBJ):
@@ -449,6 +450,9 @@ $(CURL_DIROBJ):
 {$(LIBCURL_SRC_DIR)\}.c{$(LIB_DIROBJ)\}.obj:
 	$(CC) $(CFLAGS) /Fo"$@"  $<
 
+{$(LIBCURL_SRC_DIR)\vauth\}.c{$(LIB_DIROBJ)\vauth\}.obj:
+	$(CC) $(CFLAGS) /Fo"$@"  $<
+
 {$(LIBCURL_SRC_DIR)\vtls\}.c{$(LIB_DIROBJ)\vtls\}.obj:
 	$(CC) $(CFLAGS) /Fo"$@"  $<