diff --git a/wfassoc/src/lowlevel.rs b/wfassoc/src/lowlevel.rs
index b47e29a..6970cc7 100644
--- a/wfassoc/src/lowlevel.rs
+++ b/wfassoc/src/lowlevel.rs
@@ -20,6 +20,10 @@ pub enum Error {
     BadRegOp(#[from] std::io::Error),
     #[error("{0}")]
     UnexpectedBlankKey(#[from] regext::BlankPathError),
+    #[error("{0}")]
+    LoadIconRc(#[from] concept::LoadIconRcError),
+    #[error("{0}")]
+    LoadStrRc(#[from] concept::LoadStrRcError),
 }
 
 // endregion
@@ -99,8 +103,8 @@ pub enum LosseProgId {
 impl Display for LosseProgId {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            LosseProgId::Plain(v) => write!(f, "{}", v),
-            LosseProgId::Strict(v) => write!(f, "{}", v),
+            LosseProgId::Plain(v) => v.fmt(f),
+            LosseProgId::Strict(v) => v.fmt(f),
         }
     }
 }
@@ -125,6 +129,115 @@ impl From<concept::ProgId> for LosseProgId {
 
 // endregion
 
+// region: Losse Icon Reference String
+
+/// The enum representing a losse Icon Reference String.
+/// 
+/// In real usage, programmer can use Icon Reference String,
+/// or a plain string pointing to a icon file as the icon setting value.
+/// This enum is designed for handling this scenario.
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub enum LosseIconRefStr {
+    Plain(String),
+    Strict(concept::IconRefStr),
+}
+
+impl LosseIconRefStr {
+    pub fn extract(&self, kind: concept::IconSizeKind) -> Result<concept::IconRc, Error> {
+        let rc = match self {
+            LosseIconRefStr::Plain(v) => concept::IconRc::with_ico_file(v.as_str(), kind)?,
+            LosseIconRefStr::Strict(v) => concept::IconRc::new(v.get_path(), v.get_index(), kind)?,
+        };
+        Ok(rc)
+    }
+}
+
+impl Display for LosseIconRefStr {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            LosseIconRefStr::Plain(v) => v.fmt(f),
+            LosseIconRefStr::Strict(v) => v.fmt(f),
+        }
+    }
+}
+
+impl From<&str> for LosseIconRefStr {
+    fn from(s: &str) -> Self {
+        // match it for standard IconRefStr first
+        if let Ok(v) = concept::IconRefStr::from_str(s) {
+            Self::Strict(v)
+        } else {
+            // fallback with other
+            Self::Plain(s.to_string())
+        }
+    }
+}
+
+impl From<concept::IconRefStr> for LosseIconRefStr {
+    fn from(value: concept::IconRefStr) -> Self {
+        Self::Strict(value)
+    }
+}
+
+// endregion
+
+// region: Losse String Reference String
+
+/// The enum representing a losse String Reference String.
+/// 
+/// In real usage, programmer can use String Reference String,
+/// or a plain string as the string setting value.
+/// This enum is designed for handling this scenario.
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub enum LosseStrRefStr {
+    Plain(String),
+    Strict(concept::StrRefStr),
+}
+
+impl LosseStrRefStr {
+    pub fn extract(&self) -> Result<String, Error> {
+        let rv = match self {
+            // For plain string, we just simply clone it.
+            LosseStrRefStr::Plain(v) => v.clone(),
+            // For string reference string, we try to resolve it.
+            LosseStrRefStr::Strict(v) => {
+                let rc = concept::StrRc::new(v.get_path(), v.get_index())?;
+                rc.into_string()
+            },
+        };
+        Ok(rv)
+    }
+}
+
+impl Display for LosseStrRefStr {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            LosseStrRefStr::Plain(v) => v.fmt(f),
+            LosseStrRefStr::Strict(v) => v.fmt(f),
+        }
+    }
+}
+
+impl From<&str> for LosseStrRefStr {
+    fn from(s: &str) -> Self {
+        // match it for standard StrRefStr first
+        if let Ok(v) = concept::StrRefStr::from_str(s) {
+            Self::Strict(v)
+        } else {
+            // fallback with other
+            Self::Plain(s.to_string())
+        }
+    }
+}
+
+impl From<concept::StrRefStr> for LosseStrRefStr {
+    fn from(value: concept::StrRefStr) -> Self {
+        Self::Strict(value)
+    }
+}
+
+// endregion
+
 // endregion
 
 // region: Utilities
diff --git a/wfassoc/src/win32/concept.rs b/wfassoc/src/win32/concept.rs
index 8821997..0f318aa 100644
--- a/wfassoc/src/win32/concept.rs
+++ b/wfassoc/src/win32/concept.rs
@@ -650,6 +650,10 @@ impl StrRc {
     pub fn get_string(&self) -> &str {
         &self.inner
     }
+
+    pub fn into_string(self) -> String {
+        self.inner
+    }
 }
 
 // endregion