diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 549844c..90d0977 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -10,17 +10,18 @@ edition = "2018"
 build = "src/build.rs"
 
 [dependencies]
-attohttpc = { version = "0.16", features = [ "json" ] }
+attohttpc = { version = "0.18", features = [ "json" ] }
 chrono = "0.4"
 crossbeam-channel = "0.5"
-dirs = "3.0"
+dirs = "4.0"
 log = "0.4"
-serde_json = "1.0"
 serde = { version = "1.0", features = [ "derive" ] }
-simplelog = "0.8"
-tauri = { version = "0.9", features = [ "all-api" ] }
+serde_json = "1.0"
+simconnect = "0.1"
+simplelog = "0.11"
+tauri = { version = "0.11", features = [ "all-api" ] }
 winapi = "0.3"
-winreg = "0.7"
+winreg = "0.10"
 zip = "0.5"
 
 [target."cfg(windows)".build-dependencies]
diff --git a/src-tauri/src/installer.rs b/src-tauri/src/installer.rs
index 7527c9d..ddd3aa7 100644
--- a/src-tauri/src/installer.rs
+++ b/src-tauri/src/installer.rs
@@ -297,6 +297,16 @@ impl Installer {
         Ok(())
     }
 
+    pub fn error_for_sim_running(&self) -> Result<(), Error> {
+        let mut conn = simconnect::SimConnector::new();
+
+        if conn.connect("YourControlsInstaller") {
+            return Err(Error::SimRunning);
+        }
+
+        Ok(())
+    }
+
     pub fn install_sequence(
         &mut self,
         contents: &mut ZipArchive<Cursor<Vec<u8>>>,
diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 6827849..dbf37b9 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -216,7 +216,10 @@ fn main() {
                                     }
                                 }
                                 // Download and install
-                                let result = match downloader.download_release() {
+                                let result = match installer
+                                    .error_for_sim_running()
+                                    .and_then(|_| downloader.download_release())
+                                {
                                     Ok(mut zip) => installer.install_sequence(
                                         &mut zip,
                                         &selected_features,
diff --git a/src-tauri/src/util.rs b/src-tauri/src/util.rs
index 3411033..d3484cd 100644
--- a/src-tauri/src/util.rs
+++ b/src-tauri/src/util.rs
@@ -13,6 +13,7 @@ pub enum Error {
     ReleaseError,
     WebError(attohttpc::Error),
     ZipError(zip::result::ZipError),
+    SimRunning,
 }
 
 impl std::error::Error for Error {}
@@ -34,6 +35,10 @@ impl Display for Error {
             Error::ReleaseError => write!(f, "Could not fetch release data."),
             Error::ZipError(e) => write!(f, "Could not read release ZIP file. Reason: {}", e),
             Error::IOError(e) => write!(f, "An IO error occured. Error: {}", e),
+            Error::SimRunning => write!(
+                f,
+                "Sim is running! Please close the sim to proceed with the install."
+            ),
         }
     }
 }