diff --git a/src/platform/windows.cc b/src/platform/windows.cc
index e674a2230..68d194c50 100644
--- a/src/platform/windows.cc
+++ b/src/platform/windows.cc
@@ -464,7 +464,7 @@ extern "C"
 
     void get_available_session_ids(PWSTR buf, uint32_t bufSize, BOOL include_rdp) {
         std::vector<std::wstring> sessionIds;
-        PWTS_SESSION_INFOA pInfos;
+        PWTS_SESSION_INFOA pInfos = NULL;
         DWORD count;
 
         if (WTSEnumerateSessionsA(WTS_CURRENT_SERVER_HANDLE, 0, 1, &pInfos, &count)) {
@@ -498,7 +498,7 @@ extern "C"
         }
 
         if (buf && !tmpStr.empty() && tmpStr.size() < bufSize) {
-            memcpy(buf, tmpStr.c_str(), (tmpStr.size() + 1) * sizeof(wchar_t));
+            wcsncpy_s(buf, bufSize, tmpStr.c_str(), tmpStr.size());
         }
     }
 
diff --git a/src/server/connection.rs b/src/server/connection.rs
index 03c760872..4e8a86a50 100644
--- a/src/server/connection.rs
+++ b/src/server/connection.rs
@@ -1826,7 +1826,7 @@ impl Connection {
                 self.checked_multiple_session = true;
                 if crate::platform::is_installed()
                     && crate::platform::is_share_rdp()
-                    && !(*CONN_COUNT.lock().unwrap() > 1)
+                    && Self::alive_conns().len() == 1
                     && get_version_number(&self.lr.version) >= get_version_number("1.2.4")
                 {
                     if !self
@@ -3487,6 +3487,10 @@ extern "C" fn connection_shutdown_hook() {
 }
 
 mod raii {
+    // CONN_COUNT: remote connection count in fact
+    // ALIVE_CONNS: all connections, including unauthorized connections
+    // AUTHED_CONNS: all authorized connections
+
     use super::*;
     pub struct ConnectionID(i32);