5 files changed, 28 insertions, 10 deletions

diff --git a/src/WixToolset.Converters/WixConverter.cs b/src/WixToolset.Converters/WixConverter.cs
index 5f6ee2df..b82c4490 100644
--- a/src/WixToolset.Converters/WixConverter.cs
+++ b/src/WixToolset.Converters/WixConverter.cs
@@ -469,7 +469,7 @@ namespace WixToolset.Converters
             if (modularization != null)
             {
                 var camelCaseValue = LowercaseFirstChar(modularization.Value);
-                if (category.Value != camelCaseValue &&
+                if (modularization.Value != camelCaseValue &&
                     this.OnError(ConverterTestType.ColumnModularizeCamelCase, element, "The CustomTable Modularize attribute contains an incorrectly cased '{0}' value. Lowercase the first character instead.", modularization.Name))
                 {
                     modularization.Value = camelCaseValue;
@@ -759,6 +759,19 @@ namespace WixToolset.Converters
         private void ConvertCustomActionElement(XElement xCustomAction)
         {
             var xBinaryKey = xCustomAction.Attribute("BinaryKey");
+            if (xBinaryKey != null && this.OnError(ConverterTestType.CustomActionKeysAreNowRefs, xCustomAction, "The CustomAction attributes have been renamed from BinaryKey and FileKey to BinaryRef and FileRef."))
+            {
+                xCustomAction.SetAttributeValue("BinaryRef", xBinaryKey.Value);
+                xBinaryKey.Remove();
+                xBinaryKey = xCustomAction.Attribute("BinaryRef");
+            }
+
+            var xFileKey = xCustomAction.Attribute("FileKey");
+            if (xFileKey != null && this.OnError(ConverterTestType.CustomActionKeysAreNowRefs, xCustomAction, "The CustomAction attributes have been renamed from BinaryKey and FileKey to BinaryRef and FileRef."))
+            {
+                xCustomAction.SetAttributeValue("FileRef", xFileKey.Value);
+                xFileKey.Remove();
+            }
 
             if (xBinaryKey?.Value == "WixCA" || xBinaryKey?.Value == "UtilCA")
             {
@@ -1282,6 +1295,11 @@ namespace WixToolset.Converters
             /// The string variable type was previously treated as formatted.
             /// </summary>
             AssignVariableTypeFormatted,
+
+            /// <summary>
+            /// The CustomAction attributes have been renamed from BinaryKey and FileKey to BinaryRef and FileRef.
+            /// </summary>
+            CustomActionKeysAreNowRefs,
         }
     }
 }
diff --git a/src/test/WixToolsetTest.Converters/ConverterIntegrationFixture.cs b/src/test/WixToolsetTest.Converters/ConverterIntegrationFixture.cs
index 79cc3f69..09387590 100644
--- a/src/test/WixToolsetTest.Converters/ConverterIntegrationFixture.cs
+++ b/src/test/WixToolsetTest.Converters/ConverterIntegrationFixture.cs
@@ -108,7 +108,7 @@ namespace WixToolsetTest.Converters
                 File.Copy(Path.Combine(folder, beforeFileName), Path.Combine(baseFolder, beforeFileName));
 
                 var result = RunConversion(targetFile);
-                Assert.Equal(10, result.ExitCode);
+                Assert.Equal(11, result.ExitCode);
 
                 var expected = File.ReadAllText(Path.Combine(folder, afterFileName)).Replace("\r\n", "\n");
                 var actual = File.ReadAllText(targetFile).Replace("\r\n", "\n");
@@ -133,7 +133,7 @@ namespace WixToolsetTest.Converters
 
                 var result = RunConversion(targetFile);
 
-                Assert.Equal(10, result.ExitCode);
+                Assert.Equal(11, result.ExitCode);
                 Assert.Single(result.Messages.Where(message => message.ToString().EndsWith("(QtExecCmdTimeoutAmbiguous)")));
 
                 var expected = File.ReadAllText(Path.Combine(folder, afterFileName)).Replace("\r\n", "\n");
diff --git a/src/test/WixToolsetTest.Converters/CustomActionFixture.cs b/src/test/WixToolsetTest.Converters/CustomActionFixture.cs
index 4ad7dcfd..eafc171a 100644
--- a/src/test/WixToolsetTest.Converters/CustomActionFixture.cs
+++ b/src/test/WixToolsetTest.Converters/CustomActionFixture.cs
@@ -25,10 +25,10 @@ namespace WixToolsetTest.Converters
 
             var expected = String.Join(Environment.NewLine,
                 "<Wix xmlns=\"http://wixtoolset.org/schemas/v4/wxs\">",
-                "  <CustomAction Id=\"Foo\" BinaryKey=\"Wix4UtilCA_X86\" DllEntry=\"WixQuietExec\" />",
-                "  <CustomAction Id=\"Foo\" BinaryKey=\"Wix4UtilCA_X64\" DllEntry=\"WixQuietExec64\" />",
-                "  <CustomAction Id=\"Foo\" BinaryKey=\"Wix4UtilCA_X86\" DllEntry=\"WixQuietExec\" />",
-                "  <CustomAction Id=\"Foo\" BinaryKey=\"Wix4UtilCA_X64\" DllEntry=\"WixQuietExec64\" />",
+                "  <CustomAction Id=\"Foo\" DllEntry=\"WixQuietExec\" BinaryRef=\"Wix4UtilCA_X86\" />",
+                "  <CustomAction Id=\"Foo\" DllEntry=\"WixQuietExec64\" BinaryRef=\"Wix4UtilCA_X64\" />",
+                "  <CustomAction Id=\"Foo\" DllEntry=\"WixQuietExec\" BinaryRef=\"Wix4UtilCA_X86\" />",
+                "  <CustomAction Id=\"Foo\" DllEntry=\"WixQuietExec64\" BinaryRef=\"Wix4UtilCA_X64\" />",
                 "</Wix>");
 
             var document = XDocument.Parse(parse, LoadOptions.PreserveWhitespace | LoadOptions.SetLineInfo);
@@ -40,7 +40,7 @@ namespace WixToolsetTest.Converters
 
             var actual = UnformattedDocumentString(document);
 
-            Assert.Equal(7, errors);
+            Assert.Equal(11, errors);
             Assert.Equal(expected, actual);
         }
 
diff --git a/src/test/WixToolsetTest.Converters/TestData/QtExec.bad/v4_expected.wxs b/src/test/WixToolsetTest.Converters/TestData/QtExec.bad/v4_expected.wxs
index 02a06cff..0266e177 100644
--- a/src/test/WixToolsetTest.Converters/TestData/QtExec.bad/v4_expected.wxs
+++ b/src/test/WixToolsetTest.Converters/TestData/QtExec.bad/v4_expected.wxs
@@ -15,7 +15,7 @@
 
         <Property Id="QtExecCmdTimeout" Value="600000" />
         <CustomAction Id="InstallVSTemplateCommand" Property="WixQuietExecCmdLine" Value="&quot;[VSENVPRODUCT80]\devenv.exe&quot; /setup" />
-        <CustomAction Id="InstallVSTemplate" BinaryKey="Wix4UtilCA_X86" DllEntry="WixQuietExec" Return="asyncWait" />
+        <CustomAction Id="InstallVSTemplate" DllEntry="WixQuietExec" Return="asyncWait" BinaryRef="Wix4UtilCA_X86" />
 
         <Feature Id="Feature_WiX" Title="WiX Toolset" Level="1">
             <Component Id="Licensing" Directory="INSTALLFOLDER">
diff --git a/src/test/WixToolsetTest.Converters/TestData/QtExec/v4_expected.wxs b/src/test/WixToolsetTest.Converters/TestData/QtExec/v4_expected.wxs
index 00ce8461..da4f5135 100644
--- a/src/test/WixToolsetTest.Converters/TestData/QtExec/v4_expected.wxs
+++ b/src/test/WixToolsetTest.Converters/TestData/QtExec/v4_expected.wxs
@@ -14,7 +14,7 @@
         <MediaTemplate CabinetTemplate="core{0}.cab" />
 
         <CustomAction Id="InstallVSTemplateCommand" Property="WixQuietExecCmdLine" Value="&quot;[VSENVPRODUCT80]\devenv.exe&quot; /setup" />
-        <CustomAction Id="InstallVSTemplate" BinaryKey="Wix4UtilCA_X86" DllEntry="WixQuietExec" Return="asyncWait" />
+        <CustomAction Id="InstallVSTemplate" DllEntry="WixQuietExec" Return="asyncWait" BinaryRef="Wix4UtilCA_X86" />
 
         <Feature Id="Feature_WiX" Title="WiX Toolset" Level="1">
             <Component Id="Licensing" Directory="INSTALLFOLDER">