Index: apitests/shlwapi/CMakeLists.txt
===================================================================
--- apitests/shlwapi/CMakeLists.txt	(revision 73543)
+++ apitests/shlwapi/CMakeLists.txt	(working copy)
@@ -1,6 +1,8 @@
 
 list(APPEND SOURCE
     PathIsUNC.c
+    PathIsUNCServer.c
+    PathIsUNCServerShare.c
     PathUnExpandEnvStrings.c
     testlist.c)
 
Index: apitests/shlwapi/PathIsUNCServer.c
===================================================================
--- apitests/shlwapi/PathIsUNCServer.c	(revision 0)
+++ apitests/shlwapi/PathIsUNCServer.c	(working copy)
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2017 Jared Smudde
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+/* Documentation: https://msdn.microsoft.com/en-us/library/windows/desktop/bb773722(v=vs.85).aspx */
+
+#include <apitest.h>
+
+static BOOL (WINAPI *pPathIsUNCServer)(PCWSTR);
+
+#define CALL_ISUNCSERVER(exp, str) \
+do { \
+    BOOL ret = pPathIsUNCServer((str)); \
+    ok(ret == (exp), "Expected %s to be %d, was %d\n", wine_dbgstr_w((str)), (exp), ret); \
+} while (0)
+
+START_TEST(isuncpathserver)
+{
+    HMODULE hDll = LoadLibraryA("shlwapi.dll");
+
+    pPathIsUNCServer = (void*)GetProcAddress(hDll, "PathIsUNCServerW");
+    if (!hDll || !pPathIsUNCServer)
+    {
+        skip("shlwapi.dll or export PathIsUNCServerW not found! Tests will be skipped\n");
+        return;
+    }
+
+    CALL_ISUNCSERVER(TRUE, L"\\\\server");
+    CALL_ISUNCSERVER(TRUE, L"\\\\");
+    CALL_ISUNCSERVER(FALSE, L"\\\\server\\folder");
+    CALL_ISUNCSERVER(FALSE, L"reactos\\some\\folder");
+    CALL_ISUNCSERVER(FALSE, L"////server//share");
+    CALL_ISUNCSERVER(FALSE, L"c:\\path1");
+    CALL_ISUNCSERVER(FALSE, (wchar_t*)NULL);
+    CALL_ISUNCSERVER(FALSE, L" ");
+    
+    /* The test shows TRUE on Windows 2003, but returns FALSE on Windows 7 */
+    CALL_ISUNCSERVER(TRUE, L"\\\\?");
+}
Index: apitests/shlwapi/PathIsUNCServerShare.c
===================================================================
--- apitests/shlwapi/PathIsUNCServerShare.c	(revision 0)
+++ apitests/shlwapi/PathIsUNCServerShare.c	(working copy)
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2017 Jared Smudde
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+/* Documentation: https://msdn.microsoft.com/en-us/library/windows/desktop/bb773723(v=vs.85).aspx */
+
+#include <apitest.h>
+
+static BOOL (WINAPI *pPathIsUNCServerShare)(PCWSTR);
+
+#define CALL_ISUNCSERVERSHARE(exp, str) \
+do { \
+    BOOL ret = pPathIsUNCServerShare((str)); \
+    ok(ret == (exp), "Expected %s to be %d, was %d\n", wine_dbgstr_w((str)), (exp), ret); \
+} while (0)
+
+START_TEST(isuncpathservershare)
+{
+    HMODULE hDll = LoadLibraryA("shlwapi.dll");
+
+    pPathIsUNCServerShare = (void*)GetProcAddress(hDll, "PathIsUNCServerShareW");
+    if (!hDll || !pPathIsUNCServerShare)
+    {
+        skip("shlwapi.dll or export PathIsUNCServerShareW not found! Tests will be skipped\n");
+        return;
+    }
+
+    CALL_ISUNCSERVERSHARE(TRUE, L"\\\\server\\share");
+    CALL_ISUNCSERVERSHARE(TRUE, L"\\\\reactos\\folder9");
+    CALL_ISUNCSERVERSHARE(FALSE, L"\\\\");
+    CALL_ISUNCSERVERSHARE(FALSE, L"reactos\\some\\folder");
+    CALL_ISUNCSERVERSHARE(FALSE, L"////server//share");
+    CALL_ISUNCSERVERSHARE(FALSE, L"c:\\path1");
+    CALL_ISUNCSERVERSHARE(FALSE, (wchar_t*)NULL);
+    CALL_ISUNCSERVERSHARE(FALSE, L" ");
+    CALL_ISUNCSERVERSHARE(FALSE, L"\\\\?");
+}
Index: apitests/shlwapi/testlist.c
===================================================================
--- apitests/shlwapi/testlist.c	(revision 73543)
+++ apitests/shlwapi/testlist.c	(working copy)
@@ -2,11 +2,15 @@
 #include <apitest.h>
 
 extern void func_isuncpath(void);
+extern void func_isuncpathserver(void);
+extern void func_isuncpathservershare(void);
 extern void func_PathUnExpandEnvStrings(void);
 
 const struct test winetest_testlist[] =
 {
     { "PathIsUNC", func_isuncpath },
+    { "PathIsUNCServer", func_isuncpathserver },
+    { "PathIsUNCServerShare", func_isuncpathservershare },
     { "PathUnExpandEnvStrings", func_PathUnExpandEnvStrings },
     { 0, 0 }
 };