diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9da7b84c6..372431325 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2517,22 +2517,23 @@ if (LWS_ROLE_WS)
 			create_plugin(protocol_lws_raw_test ""
 			      "plugins/protocol_lws_raw_test.c" "" "")
 
-			create_plugin(protocol_deaddrop ""
-			      "plugins/deaddrop/protocol_lws_deaddrop.c" "" "")
-
+		      if (UNIX AND LWS_HAVE_PTHREAD_H)
+				create_plugin(protocol_deaddrop ""
+				      "plugins/deaddrop/protocol_lws_deaddrop.c" "" "")
+			endif()
 		endif()
 
-if (LWS_WITH_SERVER_STATUS)
-		create_plugin(protocol_lws_server_status ""
-			      "plugins/protocol_lws_server_status.c" "" "")
-endif()
+	if (LWS_WITH_SERVER_STATUS)
+			create_plugin(protocol_lws_server_status ""
+				      "plugins/protocol_lws_server_status.c" "" "")
+	endif()
 
-if (NOT LWS_WITHOUT_CLIENT)
-		create_plugin(protocol_client_loopback_test ""
-                              "plugins/protocol_client_loopback_test.c" "" "")
-endif()
+	if (NOT LWS_WITHOUT_CLIENT)
+			create_plugin(protocol_client_loopback_test ""
+        	                      "plugins/protocol_client_loopback_test.c" "" "")
+	endif()
 
-endif()
+endif(LWS_ROLE_WS)
 
 		create_plugin(protocol_post_demo ""
 			      "plugins/protocol_post_demo.c" "" "")
diff --git a/READMEs/README.build-windows.md b/READMEs/README.build-windows.md
new file mode 100644
index 000000000..677e1f84a
--- /dev/null
+++ b/READMEs/README.build-windows.md
@@ -0,0 +1,75 @@
+# Some notes for the windows jungle
+
+This was how I compiled libwebsockets in windows March 2020.
+
+## OpenSSL
+
+### Installing prebuilt libs
+
+I used the 1.1.1d (the latest) libs from here, as recommended on the OpenSSL site
+
+[overbyte.eu](https:..wiki.overbyte.eu/wiki/index.php/ICS_Download#Download_OpenSSL_Binaries_.28required_for_SSL-enabled_components.29)
+
+I had to use procmon64 (windows' strace) to establish that these libraries are
+looking for a cert bundle at "C:\Program Files\Common Files\SSL\cert.pem"... it's not
+included in the zip file from the above, so...
+
+### Installing a cert bundle
+
+You can get a trusted cert bundle from here
+
+[drwetter/testssl cert bundle](https://raw.githubusercontent.com/drwetter/testssl.sh/3.1dev/etc/Microsoft.pem)
+
+Save it into `C:\Program Files\Common Files\SSL\cert.pem` where openssl will be able to see it.
+
+### Installing cmake
+
+CMake have a windows installer thing downloadable from here
+
+[cmake](https://cmake.org/download/)
+
+after that you can use `cmake` from the terminal OK.
+
+### Installing git
+
+Visit the canonical git site to download their windows installer thing
+
+[git](https://git-scm.com/download/win)
+
+after that `git` from the terminal is working.
+
+### Install the free "community" visual studio
+
+You can do this through "windows store" by searching for "visual studio"
+
+I installed as little as possible, we just want the C "C++" tools.
+
+It still wouldn't link without the "mt" helper tool from the
+huge windows SDK, so you have to install GB of that as well.
+
+### Building
+
+Somehow windows cmake seems slightly broken, some of the plugins and
+examples are conditional on `if (NOT WIN32)`, but it configures them
+anyway.  For this reason (it seems "only", it worked when I commented the
+cmake entries for the related plugins) `-DLWS_WITH_MINIMAL_EXAMPLES=1`
+
+Instead I followed how appveyor builds the stuff in CI... clone libwebsockets then
+
+```
+> git clone https://libwebsockets.org/repo/libwebsockets
+> cd libwebsockets
+> mkdir build
+> cd build
+> cmake ..
+> cmake --build . --config DEBUG
+```
+
+Installing requires admin privs, I opened a second cmd window as admin and did it
+there.
+
+```
+> cmake --install . --config DEBUG
+```
+
+After that you can run the test apps OK.
diff --git a/include/libwebsockets/lws-ring.h b/include/libwebsockets/lws-ring.h
index 2343fa264..e642f0f24 100644
--- a/include/libwebsockets/lws-ring.h
+++ b/include/libwebsockets/lws-ring.h
@@ -277,7 +277,7 @@ lws_ring_dump(struct lws_ring *ring, uint32_t *tail);
 		___n = 0; \
 		___oldest = *(___ptail); \
 		lws_start_foreach_llp(___type **, ___ppss, ___list_head) { \
-			___m = lws_ring_get_count_waiting_elements( \
+			___m = (int)lws_ring_get_count_waiting_elements( \
 					___ring, &(*___ppss)->___mtail); \
 			if (___m >= ___n) { \
 				___n = ___m; \
diff --git a/lib/plat/windows/windows-sockets.c b/lib/plat/windows/windows-sockets.c
index fcb31ae85..f3d3ec20b 100644
--- a/lib/plat/windows/windows-sockets.c
+++ b/lib/plat/windows/windows-sockets.c
@@ -235,7 +235,7 @@ const char *
 lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
 {
 	WCHAR *buffer;
-	DWORD bufferlen = cnt;
+	size_t bufferlen = (size_t)cnt;
 	BOOL ok = FALSE;
 
 	buffer = lws_malloc(bufferlen * 2, "inet_ntop");
@@ -250,7 +250,9 @@ lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
 		srcaddr.sin_family = AF_INET;
 		memcpy(&(srcaddr.sin_addr), src, sizeof(srcaddr.sin_addr));
 
-		if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen))
+		if (!WSAAddressToStringW((struct sockaddr*)&srcaddr,
+					sizeof(srcaddr), 0, buffer,
+					(LPDWORD)&bufferlen))
 			ok = TRUE;
 #ifdef LWS_WITH_IPV6
 	} else if (af == AF_INET6) {
@@ -259,7 +261,9 @@ lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
 		srcaddr.sin6_family = AF_INET6;
 		memcpy(&(srcaddr.sin6_addr), src, sizeof(srcaddr.sin6_addr));
 
-		if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen))
+		if (!WSAAddressToStringW((struct sockaddr*)&srcaddr,
+					 sizeof(srcaddr), 0, buffer,
+					 (LPDWORD)&bufferlen))
 			ok = TRUE;
 #endif
 	} else
@@ -269,7 +273,8 @@ lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
 		int rv = WSAGetLastError();
 		lwsl_err("WSAAddressToString() : %d\n", rv);
 	} else {
-		if (WideCharToMultiByte(CP_ACP, 0, buffer, bufferlen, dst, cnt, 0, NULL) <= 0)
+		if (WideCharToMultiByte(CP_ACP, 0, buffer, (int)bufferlen, dst,
+					cnt, 0, NULL) <= 0)
 			ok = FALSE;
 	}
 
@@ -281,7 +286,7 @@ int
 lws_plat_inet_pton(int af, const char *src, void *dst)
 {
 	WCHAR *buffer;
-	DWORD bufferlen = (int)strlen(src) + 1;
+	size_t bufferlen = strlen(src) + 1;
 	BOOL ok = FALSE;
 
 	buffer = lws_malloc(bufferlen * 2, "inet_pton");
@@ -290,7 +295,8 @@ lws_plat_inet_pton(int af, const char *src, void *dst)
 		return -1;
 	}
 
-	if (MultiByteToWideChar(CP_ACP, 0, src, bufferlen, buffer, bufferlen) <= 0) {
+	if (MultiByteToWideChar(CP_ACP, 0, src, (int)bufferlen, buffer,
+				(int)bufferlen) <= 0) {
 		lwsl_err("Failed to convert multi byte to wide char\n");
 		lws_free(buffer);
 		return -1;
diff --git a/lib/roles/http/client/client-handshake.c b/lib/roles/http/client/client-handshake.c
index 3cb950ced..be2da3bc9 100644
--- a/lib/roles/http/client/client-handshake.c
+++ b/lib/roles/http/client/client-handshake.c
@@ -993,10 +993,10 @@ lws_client_reset(struct lws **pwsi, int ssl, const char *address, int port,
 	 */
 
 	for (n = 0; n < (int)LWS_ARRAY_SIZE(hnames2); n++)
-		size += lws_hdr_total_length(wsi, hnames2[n]) + 1;
+		size += lws_hdr_total_length(wsi, hnames2[n]) + (size_t)1;
 
-	if ((int)size < lws_hdr_total_length(wsi, _WSI_TOKEN_CLIENT_URI) + 1)
-		size = lws_hdr_total_length(wsi, _WSI_TOKEN_CLIENT_URI) + 1;
+	if (size < (size_t)lws_hdr_total_length(wsi, _WSI_TOKEN_CLIENT_URI) + 1)
+		size = lws_hdr_total_length(wsi, _WSI_TOKEN_CLIENT_URI) + (size_t)1;
 
 	/*
 	 * The incoming address and host can be from inside the existing ah
@@ -1022,19 +1022,19 @@ lws_client_reset(struct lws **pwsi, int ssl, const char *address, int port,
 
 	for (n = 0; n < (int)LWS_ARRAY_SIZE(hnames2); n++)
 		if (lws_hdr_total_length(wsi, hnames2[n])) {
-			memcpy(p, lws_hdr_simple_ptr(wsi, hnames2[n]),
-				lws_hdr_total_length(wsi, hnames2[n]) + 1);
-			p += lws_hdr_total_length(wsi, hnames2[n]) + 1;
+			memcpy(p, lws_hdr_simple_ptr(wsi, hnames2[n]), (size_t)(
+			       lws_hdr_total_length(wsi, hnames2[n]) + 1));
+			p += (size_t)(lws_hdr_total_length(wsi, hnames2[n]) + 1);
 		} else
 			*p++ = '\0';
 
-	memcpy(p, address, strlen(address) + 1);
+	memcpy(p, address, strlen(address) + (size_t)1);
 	address = p;
 	p += strlen(address) + 1;
-	memcpy(p, host, strlen(host) + 1);
+	memcpy(p, host, strlen(host) + (size_t)1);
 	host = p;
 	p += strlen(host) + 1;
-	memcpy(p, path, strlen(path) + 1);
+	memcpy(p, path, strlen(path) + (size_t)1);
 	path = p;
 
 	if (!port) {
@@ -1133,11 +1133,12 @@ lws_client_reset(struct lws **pwsi, int ssl, const char *address, int port,
 	for (n = 0; n < (int)LWS_ARRAY_SIZE(hnames2); n++) {
 		if (lws_hdr_simple_create(wsi, hnames2[n], p))
 			goto bail;
-		p += lws_hdr_total_length(wsi, hnames2[n]) + 1;
+		p += lws_hdr_total_length(wsi, hnames2[n]) + (size_t)1;
 	}
 
 	stash[0] = '/';
-	memmove(&stash[1], path, size - 1 < strlen(path) + 1 ? size - 1 : strlen(path) + 1);
+	memmove(&stash[1], path, size - 1 < strlen(path) + 1 ?
+					size - 1 : strlen(path) + (size_t)1);
 	if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_URI, stash))
 		goto bail;
 
diff --git a/minimal-examples/gtk/minimal-gtk/main.c b/minimal-examples/gtk/minimal-gtk/main.c
index 00860b489..d88d616f5 100644
--- a/minimal-examples/gtk/minimal-gtk/main.c
+++ b/minimal-examples/gtk/minimal-gtk/main.c
@@ -130,7 +130,7 @@ static const struct lws_protocols protocols[] = {
 static gpointer
 t1_main (gpointer user_data)
 {
-	lws_state_notify_link_t notifier = { {}, system_notify_cb, "app" };
+	lws_state_notify_link_t notifier = { {0}, system_notify_cb, "app" };
 	lws_state_notify_link_t *na[] = { &notifier, NULL };
 	GMainContext *t1_mc = (GMainContext *)user_data;
 	struct lws_context_creation_info info;
diff --git a/minimal-examples/http-client/minimal-http-client-attach/CMakeLists.txt b/minimal-examples/http-client/minimal-http-client-attach/CMakeLists.txt
index b38a68676..96441dac5 100644
--- a/minimal-examples/http-client/minimal-http-client-attach/CMakeLists.txt
+++ b/minimal-examples/http-client/minimal-http-client-attach/CMakeLists.txt
@@ -76,6 +76,9 @@ MACRO(require_lws_config reqconfig _val result)
 ENDMACRO()
 
 set(requirements 1)
+if (WIN32)
+	set(requirements 0)
+endif()
 require_pthreads(requirements)
 require_lws_config(LWS_ROLE_H1 1 requirements)
 require_lws_config(LWS_WITH_CLIENT 1 requirements)
diff --git a/minimal-examples/http-client/minimal-http-client-h2-rxflow/minimal-http-client.c b/minimal-examples/http-client/minimal-http-client-h2-rxflow/minimal-http-client.c
index 3013ee149..9c9149bc8 100644
--- a/minimal-examples/http-client/minimal-http-client-h2-rxflow/minimal-http-client.c
+++ b/minimal-examples/http-client/minimal-http-client-h2-rxflow/minimal-http-client.c
@@ -236,7 +236,7 @@ system_notify_cb(lws_state_manager_t *mgr, lws_state_notify_link_t *link,
 
 int main(int argc, const char **argv)
 {
-	lws_state_notify_link_t notifier = { {}, system_notify_cb, "app" };
+	lws_state_notify_link_t notifier = { {0}, system_notify_cb, "app" };
 	lws_state_notify_link_t *na[] = { &notifier, NULL };
 	struct lws_context_creation_info info;
 	struct lws_context *context;
diff --git a/minimal-examples/http-client/minimal-http-client-multi/minimal-http-client-multi.c b/minimal-examples/http-client/minimal-http-client-multi/minimal-http-client-multi.c
index 7a326c657..16cb1d0bb 100644
--- a/minimal-examples/http-client/minimal-http-client-multi/minimal-http-client-multi.c
+++ b/minimal-examples/http-client/minimal-http-client-multi/minimal-http-client-multi.c
@@ -59,7 +59,7 @@ callback_http(struct lws *wsi, enum lws_callback_reasons reason,
 {
 	char buf[LWS_PRE + 1024], *start = &buf[LWS_PRE], *p = start,
 	     *end = &buf[sizeof(buf) - LWS_PRE - 1];
-	int n, idx = (int)(long)lws_get_opaque_user_data(wsi);
+	int n, idx = (int)(intptr_t)lws_get_opaque_user_data(wsi);
 	struct pss *pss = (struct pss *)user;
 
 	switch (reason) {
@@ -279,7 +279,7 @@ lws_try_client_connection(struct lws_client_connect_info *i, int m)
 		i->path = urlpath;
 
 	i->pwsi = &client_wsi[m];
-	i->opaque_user_data = (void *)(long)m;
+	i->opaque_user_data = (void *)(intptr_t)m;
 
 	if (!lws_client_connect_via_info(i)) {
 		failed++;
diff --git a/minimal-examples/http-client/minimal-http-client/minimal-http-client.c b/minimal-examples/http-client/minimal-http-client/minimal-http-client.c
index c88027a44..fffe8882a 100644
--- a/minimal-examples/http-client/minimal-http-client/minimal-http-client.c
+++ b/minimal-examples/http-client/minimal-http-client/minimal-http-client.c
@@ -73,7 +73,7 @@ callback_http(struct lws *wsi, enum lws_callback_reasons reason,
 		if (lws_http_basic_auth_gen(ba_user, ba_password, b, sizeof(b)))
 			break;
 		if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_AUTHORIZATION,
-				(unsigned char *)b, strlen(b), p, end))
+				(unsigned char *)b, (int)strlen(b), p, end))
 			return -1;
 
 		break;
@@ -256,7 +256,7 @@ system_notify_cb(lws_state_manager_t *mgr, lws_state_notify_link_t *link,
 
 int main(int argc, const char **argv)
 {
-	lws_state_notify_link_t notifier = { {}, system_notify_cb, "app" };
+	lws_state_notify_link_t notifier = { {0}, system_notify_cb, "app" };
 	lws_state_notify_link_t *na[] = { &notifier, NULL };
 	struct lws_context_creation_info info;
 	struct lws_context *context;
diff --git a/minimal-examples/ws-server/minimal-ws-server-threads/CMakeLists.txt b/minimal-examples/ws-server/minimal-ws-server-threads/CMakeLists.txt
index 076da4fec..5194c70f7 100644
--- a/minimal-examples/ws-server/minimal-ws-server-threads/CMakeLists.txt
+++ b/minimal-examples/ws-server/minimal-ws-server-threads/CMakeLists.txt
@@ -76,6 +76,9 @@ MACRO(require_lws_config reqconfig _val result)
 ENDMACRO()
 
 set(requirements 1)
+if (WIN32)
+	set(requirements 0)
+endif()
 require_pthreads(requirements)
 require_lws_config(LWS_ROLE_WS 1 requirements)
 require_lws_config(LWS_WITH_SERVER 1 requirements)