Index: lld/COFF/Config.h
===================================================================
--- lld/COFF/Config.h
+++ lld/COFF/Config.h
@@ -248,9 +248,11 @@
   uint32_t minorImageVersion = 0;
   // If changing the default os/subsys version here, update the default in
   // the MinGW driver accordingly.
-  uint32_t majorOSVersion = 6;
+  // Chang the value to 4 to support win-xp
+  uint32_t majorOSVersion = 4;
   uint32_t minorOSVersion = 0;
-  uint32_t majorSubsystemVersion = 6;
+  // Chang the value to 4 to support win-xp
+  uint32_t majorSubsystemVersion = 4;
   uint32_t minorSubsystemVersion = 0;
   uint32_t timestamp = 0;
   uint32_t functionPadMin = 0;
Index: lld/COFF/DriverUtils.cpp
===================================================================
--- lld/COFF/DriverUtils.cpp
+++ lld/COFF/DriverUtils.cpp
@@ -386,11 +386,12 @@
 
   // Emit the XML. Note that we do *not* verify that the XML attributes are
   // syntactically correct. This is intentional for link.exe compatibility.
-  os << "<?xml version=\"1.0\" standalone=\"yes\"?>\n"
-     << "<assembly xmlns=\"urn:schemas-microsoft-com:asm.v1\"\n"
-     << "          manifestVersion=\"1.0\">\n";
+  // Use microsoft xml to support win-xp.
+  os << "<?xml version='1.0' encoding='UTF-8' standalone='yes'?>\n"
+     << "<assembly xmlns='urn:schemas-microsoft-com:asm.v1' "
+        "manifestVersion='1.0'>\n";
   if (config->manifestUAC) {
-    os << "  <trustInfo>\n"
+    os << "  <trustInfo xmlns=\"urn:schemas-microsoft-com:asm.v3\">\n"
        << "    <security>\n"
        << "      <requestedPrivileges>\n"
        << "         <requestedExecutionLevel level=" << config->manifestLevel
Index: lld/test/COFF/hello32.test
===================================================================
--- lld/test/COFF/hello32.test
+++ lld/test/COFF/hello32.test
@@ -34,11 +34,11 @@
 HEADER-NEXT:   ImageBase: 0x400000
 HEADER-NEXT:   SectionAlignment: 4096
 HEADER-NEXT:   FileAlignment: 512
-HEADER-NEXT:   MajorOperatingSystemVersion: 6
+HEADER-NEXT:   MajorOperatingSystemVersion: 4
 HEADER-NEXT:   MinorOperatingSystemVersion: 0
 HEADER-NEXT:   MajorImageVersion: 0
 HEADER-NEXT:   MinorImageVersion: 0
-HEADER-NEXT:   MajorSubsystemVersion: 6
+HEADER-NEXT:   MajorSubsystemVersion: 4
 HEADER-NEXT:   MinorSubsystemVersion: 0
 HEADER-NEXT:   SizeOfImage: 20480
 HEADER-NEXT:   SizeOfHeaders: 1024