diff --git a/w32/curl.vsprops b/w32/curl.vsprops
index 0142a15d4e..5cc854b7c1 100644
--- a/w32/curl.vsprops
+++ b/w32/curl.vsprops
@@ -1,7 +1,12 @@
-<?xml version="1.0"?>
-<VisualStudioPropertySheet 
-	ProjectType="Visual C++" 
-	Version="8.00" 
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioPropertySheet
+	ProjectType="Visual C++"
+	Version="8.00"
 	Name="curl"
 	>
+	<Tool
+		Name="VCCLCompilerTool"
+		AdditionalIncludeDirectories="$(SolutionDir)libs\curl\include"
+		PreprocessorDefinitions="HAVE_CURL;CURL_STATICLIB"
+	/>
 </VisualStudioPropertySheet>
diff --git a/w32/module_debug.vsprops b/w32/module_debug.vsprops
index 18c6749169..6e481ed9c0 100644
--- a/w32/module_debug.vsprops
+++ b/w32/module_debug.vsprops
@@ -8,7 +8,7 @@
 	<Tool
 		Name="VCCLCompilerTool"
 		Optimization="0"
-		PreprocessorDefinitions="_DEBUG"
+		PreprocessorDefinitions="_DEBUG;DEBUG"
 		BasicRuntimeChecks="3"
 		RuntimeLibrary="3"
 		DebugInformationFormat="3"
diff --git a/w32/spidermonkey.vsprops b/w32/spidermonkey.vsprops
index 76f14cb11c..05fbab8617 100644
--- a/w32/spidermonkey.vsprops
+++ b/w32/spidermonkey.vsprops
@@ -1,7 +1,17 @@
-<?xml version="1.0"?>
-<VisualStudioPropertySheet 
-	ProjectType="Visual C++" 
-	Version="8.00" 
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioPropertySheet
+	ProjectType="Visual C++"
+	Version="8.00"
 	Name="spidermonkey"
+	InheritedPropertySheets=".\curl.vsprops"
 	>
+	<Tool
+		Name="VCCLCompilerTool"
+		AdditionalIncludeDirectories="&quot;$(SolutionDir)libs\js\src&quot;;&quot;$(SolutionDir)libs\js\nsprpub\pr\include&quot;;&quot;$(SolutionDir)src\mod\languages\mod_spidermonkey&quot;"
+		PreprocessorDefinitions="XP_WIN;_X86_=1;JSFILE;EXPORT_JS_API;JS_THREADSAFE"
+	/>
+	<Tool
+		Name="VCLinkerTool"
+		AdditionalLibraryDirectories="&quot;..\..\..\..\libs\nspr-4.6.1.winnt5.$(OutDir)\nspr-4.6.1\lib&quot;"
+	/>
 </VisualStudioPropertySheet>