diff --git a/.vscode/cspell.json b/.vscode/cspell.json
index 1511416..7da6549 100644
--- a/.vscode/cspell.json
+++ b/.vscode/cspell.json
@@ -11,6 +11,7 @@
     "LPSTR",
     "msbuild",
     "msica",
+    "msidb",
     "msiexec",
     "MSIHANDLE",
     "msvc",
diff --git a/Cargo.toml b/Cargo.toml
index af852d4..a9ce960 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,3 +27,8 @@ path = "examples/deferred/lib.rs"
 name = "skip"
 crate-type = ["cdylib"]
 path = "examples/skip/lib.rs"
+
+[[example]]
+name = "trace"
+crate-type = ["cdylib"]
+path = "examples/trace/lib.rs"
diff --git a/examples/example.wixproj b/examples/example.wixproj
index 3eea41d..abb8792 100644
--- a/examples/example.wixproj
+++ b/examples/example.wixproj
@@ -24,6 +24,7 @@
     <Compile Include="example.wxs" />
     <Compile Include="deferred\deferred.wxs" />
     <Compile Include="skip\skip.wxs" />
+    <Compile Include="trace\trace.wxs" />
   </ItemGroup>
   <ItemGroup>
     <BindInputPaths Include="..\target\$(Configuration)" />
diff --git a/examples/example.wxs b/examples/example.wxs
index 7c0d9a9..c34ac1b 100644
--- a/examples/example.wxs
+++ b/examples/example.wxs
@@ -38,5 +38,6 @@
     <!-- Examples -->
     <CustomActionRef Id="DeferredExampleCustomAction" />
     <CustomActionRef Id="SkipExampleCustomAction" />
+    <CustomActionRef Id="TraceExampleCustomAction" />
   </Product>
 </Wix>
diff --git a/examples/skip/lib.rs b/examples/skip/lib.rs
index 9329fcd..6459f11 100644
--- a/examples/skip/lib.rs
+++ b/examples/skip/lib.rs
@@ -17,6 +17,10 @@ pub extern "C" fn SkipExampleCustomAction(session: Session) -> CustomActionResul
         }
         true => {
             let data = session.property("CustomActionData")?;
+            if data.is_empty() {
+                return Succeed;
+            }
+
             // Unnecessarily parsing the string demonstrates using ? for any possible error.
             let data = data.parse::<u32>()?;
             if data == 2 {
diff --git a/examples/trace/lib.rs b/examples/trace/lib.rs
new file mode 100644
index 0000000..3fdd8a6
--- /dev/null
+++ b/examples/trace/lib.rs
@@ -0,0 +1,83 @@
+// Copyright 2022 Heath Stewart.
+// Licensed under the MIT License. See LICENSE.txt in the project root for license information.
+
+use msica::CustomActionResult::Succeed;
+use msica::*;
+
+const MSIDB_CUSTOM_ACTION_TYPE_DLL: i32 = 1;
+const MSIDB_CUSTOM_ACTION_TYPE_CONTINUE: i32 = 64;
+const MSIDB_CUSTOM_ACTION_TYPE_IN_SCRIPT: i32 = 1024;
+
+#[no_mangle]
+pub extern "C" fn TraceExampleCustomAction(session: Session) -> CustomActionResult {
+    let trace_deferred_actions: Vec<&'static str> = vec!["InstallFiles"];
+
+    let database = session.database();
+
+    let custom_actions =
+        database.open_view("SELECT `Action`, `Type`, `Source`, `Target` FROM `CustomAction`")?;
+    custom_actions.execute(None)?;
+
+    let sequence_table =
+        database.open_view("SELECT `Action`, `Sequence` FROM `InstallExecuteSequence`")?;
+    sequence_table.execute(None)?;
+
+    let sequence_table_ordered = database.open_view(
+        "SELECT `Action`, `Sequence` FROM `InstallExecuteSequence` ORDER BY `Sequence`",
+    )?;
+    sequence_table_ordered.execute(None)?;
+    for action in sequence_table_ordered {
+        let name = action.string_data(1)?;
+        let sequence = action.integer_data(2).unwrap_or_default();
+
+        if trace_deferred_actions.contains(&name.as_ref()) {
+            let action = format!("{}Pre", name);
+            session.set_property(action.as_ref(), Some(action.as_ref()))?;
+            insert_row(&custom_actions, &sequence_table, action, sequence - 1)?;
+
+            let action = format!("{}Post", name);
+            session.set_property(action.as_ref(), Some(action.as_ref()))?;
+            insert_row(&custom_actions, &sequence_table, action, sequence + 1)?;
+        }
+    }
+
+    Succeed
+}
+
+#[no_mangle]
+pub extern "C" fn TraceExampleCustomActionDeferred(session: Session) -> CustomActionResult {
+    let data = session.property("CustomActionData")?;
+    let record = Record::with_fields(Some("Running [1]"), vec![Field::StringData(data)])?;
+    session.message(MessageType::Info, &record);
+
+    Succeed
+}
+
+fn insert_row(
+    custom_actions: &View,
+    sequence_table: &View,
+    name: String,
+    sequence: i32,
+) -> Result<()> {
+    const TYPE: i32 = MSIDB_CUSTOM_ACTION_TYPE_DLL
+        + MSIDB_CUSTOM_ACTION_TYPE_IN_SCRIPT
+        + MSIDB_CUSTOM_ACTION_TYPE_CONTINUE;
+
+    let custom_action = Record::with_fields(
+        None,
+        vec![
+            Field::StringData(name.clone()),
+            Field::IntegerData(TYPE),
+            Field::StringData("TraceExample".to_owned()),
+            Field::StringData("TraceExampleCustomActionDeferred".to_owned()),
+        ],
+    )?;
+    custom_actions.modify(ModifyMode::InsertTemporary, &custom_action)?;
+
+    let action = Record::with_fields(
+        None,
+        vec![Field::StringData(name), Field::IntegerData(sequence)],
+    )?;
+    sequence_table.modify(ModifyMode::InsertTemporary, &action)?;
+    Ok(())
+}
diff --git a/examples/trace/trace.wxs b/examples/trace/trace.wxs
new file mode 100644
index 0000000..d593d48
--- /dev/null
+++ b/examples/trace/trace.wxs
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<!--
+  Copyright 2022 Heath Stewart.
+  Licensed under the MIT License. See LICENSE.txt in the project root for license information.
+-->
+<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
+  <Fragment>
+    <Binary Id="TraceExample" SourceFile="examples\trace.dll" />
+    <CustomAction Id="TraceExampleCustomAction" BinaryKey="TraceExample" DllEntry="TraceExampleCustomAction" />
+    <InstallExecuteSequence>
+      <Custom Action="TraceExampleCustomAction" Sequence="1" />
+    </InstallExecuteSequence>
+  </Fragment>
+</Wix>