diff --git a/rust/src/app.rs b/rust/src/app.rs
index 0d0868c..1935673 100644
--- a/rust/src/app.rs
+++ b/rust/src/app.rs
@@ -3,6 +3,7 @@ use std::path::PathBuf;
 use std::sync::Arc;
 use crate::installer::validator::*;
 use crate::installer::downloader::DownloadManager;
+use crate::installer::SevenZDearchiver;
 use crate::ui::download_progress::download_progress;
 use crate::ui::game_selection::game_selection;
 use crate::ui::installation_progress::installation_progress;
@@ -182,6 +183,7 @@ impl<> eframe::App for SinfarInstallerApp<> {
                             if self.state == InstallerState::Download {
                                 self.start_download();
                             } else if self.state == InstallerState::Installing {
+                                //self.start_extract();
                                 self.start_installation();
                             }
                         }
@@ -335,4 +337,40 @@ impl SinfarInstallerApp<> {
             });
         }
     }
+
+    pub fn start_extract(&mut self) {
+        
+        let dearchiver = crate::installer::SevenZDearchiver::new();
+        let download_state = self.download_state.clone();
+        let error_state = download_state.clone();
+        let eframe_ctx = self.eframe_ctx.clone().expect("eframe context should be set");
+        
+        // Placeholder paths for testing
+        let archive_path = std::path::PathBuf::from("C:/Users/Samuel/AppData/Local/Temp/sinfar_installer/sinfar_all_files_v30.7z");
+        let output_dir = std::path::PathBuf::from("C:/Users/Samuel/AppData/Local/Temp/sinfar_installer/test");
+
+        self.runtime.spawn(async move {
+            if let Err(e) = dearchiver.extract(
+                &archive_path,
+                &output_dir,
+                move |progress, eta| {
+                    if let Ok(mut state) = download_state.lock() {
+                        state.progress = progress;
+                        state.estimated_remaining = eta;
+                        if state.progress == 1.0 {
+                            state.completed = true;
+                        } 
+                        else {
+                            state.completed = false;
+                        }
+                        eframe_ctx.request_repaint();
+                    }
+                }
+            ).await {
+                if let Ok(mut state) = error_state.lock() {
+                    state.error = Some(format!("Extraction failed: {}", e));
+                }
+            }
+        });
+    }
 }
\ No newline at end of file
diff --git a/rust/src/installer/7z_dearchiver.rs b/rust/src/installer/7z_dearchiver.rs
new file mode 100644
index 0000000..5af2319
--- /dev/null
+++ b/rust/src/installer/7z_dearchiver.rs
@@ -0,0 +1,112 @@
+use anyhow::Result;
+use std::path::Path;
+use std::sync::Arc;
+use tokio::sync::{Mutex, watch};
+use std::io::{Read, Seek};
+use std::fs;
+use std::time::{Duration, Instant};
+
+pub struct SevenZDearchiver {
+    cancel_tx: watch::Sender<bool>,
+    cancel_rx: watch::Receiver<bool>,
+}
+
+impl SevenZDearchiver {
+    pub fn new() -> Self {
+        let (cancel_tx, cancel_rx) = watch::channel(false);
+        Self {
+            cancel_tx,
+            cancel_rx,
+        }
+    }
+
+    pub fn cancel(&self) {
+        let _ = self.cancel_tx.send(true);
+    }
+
+    pub async fn extract<F>(&self, archive_path: &Path, output_dir: &Path, progress_callback: F) -> Result<()> 
+    where 
+        F: Fn(f32, Duration) + Send + Sync + 'static 
+    {
+        // Create wrapper for progress tracking
+        struct ProgressReader<R: Read + Seek> {
+            inner: R,
+            bytes_read: u64,
+            total_size: u64,
+            last_update: Instant,
+            cancel_signal: watch::Receiver<bool>,
+            progress_callback: Arc<Box<dyn Fn(f32, Duration) + Send + Sync>>,
+        }
+
+        impl<R: Read + Seek> Read for ProgressReader<R> {
+            fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
+                // Check cancellation
+                if *self.cancel_signal.borrow() {
+                    return Ok(0); // Return 0 to indicate EOF and stop extraction
+                }
+
+                let bytes = self.inner.read(buf)?;
+                self.bytes_read += bytes as u64;
+                
+                let now = Instant::now();
+                let elapsed = now.duration_since(self.last_update);
+                
+                // Update progress every 100ms
+                if elapsed.as_millis() > 100 {
+                    let progress = self.bytes_read as f32 / self.total_size as f32;
+                    
+                    // Calculate estimated time remaining
+                    let speed = self.bytes_read as f64 / elapsed.as_secs_f64();
+                    let remaining_bytes = self.total_size - self.bytes_read;
+                    let eta = if speed > 0.0 {
+                        Duration::from_secs_f64(remaining_bytes as f64 / speed)
+                    } else {
+                        Duration::from_secs(0)
+                    };
+                    
+                    (self.progress_callback)(progress, eta);
+                    self.last_update = now;
+                }
+                
+                Ok(bytes)
+            }
+        }
+
+        impl<R: Read + Seek> Seek for ProgressReader<R> {
+            fn seek(&mut self, pos: std::io::SeekFrom) -> std::io::Result<u64> {
+                self.inner.seek(pos)
+            }
+        }
+
+        // Start extraction in blocking task
+        let cancel_rx = self.cancel_rx.clone();
+        let progress_cb = Arc::new(Box::new(progress_callback) as Box<dyn Fn(f32, Duration) + Send + Sync>);
+        let archive_path = archive_path.to_owned();
+        let output_dir = output_dir.to_owned();
+
+        tokio::task::spawn_blocking(move || -> Result<()> {
+            let file = fs::File::open(&archive_path)?;
+            let file_size = file.metadata()?.len();
+            
+            let progress_reader = ProgressReader {
+                inner: file,
+                bytes_read: 0,
+                total_size: file_size,
+                last_update: Instant::now(),
+                cancel_signal: cancel_rx,
+                progress_callback: progress_cb,
+            };
+
+            sevenz_rust::decompress(progress_reader, &output_dir)?;
+            Ok(())
+        }).await??;
+
+        Ok(())
+    }
+}
+
+impl Default for SevenZDearchiver {
+    fn default() -> Self {
+        Self::new()
+    }
+}
\ No newline at end of file
diff --git a/rust/src/installer/mod.rs b/rust/src/installer/mod.rs
index 4994122..cf27816 100644
--- a/rust/src/installer/mod.rs
+++ b/rust/src/installer/mod.rs
@@ -1,4 +1,7 @@
 pub mod downloader;
 pub mod extractor;
 pub mod validator;
-pub mod shortcut;
\ No newline at end of file
+pub mod shortcut;
+pub mod seven_z_dearchiver;
+
+pub use seven_z_dearchiver::SevenZDearchiver;
\ No newline at end of file
diff --git a/rust/src/installer/seven_z_dearchiver.rs b/rust/src/installer/seven_z_dearchiver.rs
new file mode 100644
index 0000000..5af2319
--- /dev/null
+++ b/rust/src/installer/seven_z_dearchiver.rs
@@ -0,0 +1,112 @@
+use anyhow::Result;
+use std::path::Path;
+use std::sync::Arc;
+use tokio::sync::{Mutex, watch};
+use std::io::{Read, Seek};
+use std::fs;
+use std::time::{Duration, Instant};
+
+pub struct SevenZDearchiver {
+    cancel_tx: watch::Sender<bool>,
+    cancel_rx: watch::Receiver<bool>,
+}
+
+impl SevenZDearchiver {
+    pub fn new() -> Self {
+        let (cancel_tx, cancel_rx) = watch::channel(false);
+        Self {
+            cancel_tx,
+            cancel_rx,
+        }
+    }
+
+    pub fn cancel(&self) {
+        let _ = self.cancel_tx.send(true);
+    }
+
+    pub async fn extract<F>(&self, archive_path: &Path, output_dir: &Path, progress_callback: F) -> Result<()> 
+    where 
+        F: Fn(f32, Duration) + Send + Sync + 'static 
+    {
+        // Create wrapper for progress tracking
+        struct ProgressReader<R: Read + Seek> {
+            inner: R,
+            bytes_read: u64,
+            total_size: u64,
+            last_update: Instant,
+            cancel_signal: watch::Receiver<bool>,
+            progress_callback: Arc<Box<dyn Fn(f32, Duration) + Send + Sync>>,
+        }
+
+        impl<R: Read + Seek> Read for ProgressReader<R> {
+            fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
+                // Check cancellation
+                if *self.cancel_signal.borrow() {
+                    return Ok(0); // Return 0 to indicate EOF and stop extraction
+                }
+
+                let bytes = self.inner.read(buf)?;
+                self.bytes_read += bytes as u64;
+                
+                let now = Instant::now();
+                let elapsed = now.duration_since(self.last_update);
+                
+                // Update progress every 100ms
+                if elapsed.as_millis() > 100 {
+                    let progress = self.bytes_read as f32 / self.total_size as f32;
+                    
+                    // Calculate estimated time remaining
+                    let speed = self.bytes_read as f64 / elapsed.as_secs_f64();
+                    let remaining_bytes = self.total_size - self.bytes_read;
+                    let eta = if speed > 0.0 {
+                        Duration::from_secs_f64(remaining_bytes as f64 / speed)
+                    } else {
+                        Duration::from_secs(0)
+                    };
+                    
+                    (self.progress_callback)(progress, eta);
+                    self.last_update = now;
+                }
+                
+                Ok(bytes)
+            }
+        }
+
+        impl<R: Read + Seek> Seek for ProgressReader<R> {
+            fn seek(&mut self, pos: std::io::SeekFrom) -> std::io::Result<u64> {
+                self.inner.seek(pos)
+            }
+        }
+
+        // Start extraction in blocking task
+        let cancel_rx = self.cancel_rx.clone();
+        let progress_cb = Arc::new(Box::new(progress_callback) as Box<dyn Fn(f32, Duration) + Send + Sync>);
+        let archive_path = archive_path.to_owned();
+        let output_dir = output_dir.to_owned();
+
+        tokio::task::spawn_blocking(move || -> Result<()> {
+            let file = fs::File::open(&archive_path)?;
+            let file_size = file.metadata()?.len();
+            
+            let progress_reader = ProgressReader {
+                inner: file,
+                bytes_read: 0,
+                total_size: file_size,
+                last_update: Instant::now(),
+                cancel_signal: cancel_rx,
+                progress_callback: progress_cb,
+            };
+
+            sevenz_rust::decompress(progress_reader, &output_dir)?;
+            Ok(())
+        }).await??;
+
+        Ok(())
+    }
+}
+
+impl Default for SevenZDearchiver {
+    fn default() -> Self {
+        Self::new()
+    }
+}
\ No newline at end of file