diff --git a/inc/shared/atomic.h b/inc/shared/atomic.h
new file mode 100644
index 000000000..8385ef058
--- /dev/null
+++ b/inc/shared/atomic.h
@@ -0,0 +1,27 @@
+/*
+Copyright (C) 2023 Andrey Nazarov
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#ifdef _MSC_VER
+typedef volatile int atomic_int;
+#define atomic_load(p)      (*(p))
+#define atomic_store(p, v)  (*(p) = (v))
+#else
+#include <stdatomic.h>
+#endif
diff --git a/inc/shared/platform.h b/inc/shared/platform.h
index 9288aa0c4..29152446c 100644
--- a/inc/shared/platform.h
+++ b/inc/shared/platform.h
@@ -142,10 +142,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define q_malloc
 #define q_sentinel
 
-#define q_likely(x)         !!(x)
-#define q_unlikely(x)       !!(x)
+#define q_likely(x)         (x)
+#define q_unlikely(x)       (x)
 #define q_offsetof(t, m)    ((size_t)&((t *)0)->m)
+#ifdef _MSC_VER
 #define q_alignof(t)        __alignof(t)
+#else
+#define q_alignof(t)        1
+#endif
 
 #define q_gameabi
 
diff --git a/src/client/http.c b/src/client/http.c
index ee799654c..882581605 100644
--- a/src/client/http.c
+++ b/src/client/http.c
@@ -21,14 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client.h"
 #include <curl/curl.h>
 
-#ifdef _MSC_VER
-typedef volatile int atomic_int;
-#define atomic_load(p)      (*(p))
-#define atomic_store(p, v)  (*(p) = (v))
-#else
-#include <stdatomic.h>
-#endif
-
+#include "shared/atomic.h"
 #include "system/pthread.h"
 
 static cvar_t  *cl_http_downloads;
diff --git a/src/windows/system.c b/src/windows/system.c
index bfaf9ee45..8288e4201 100644
--- a/src/windows/system.c
+++ b/src/windows/system.c
@@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "common/cvar.h"
 #include "common/field.h"
 #include "common/prompt.h"
+#include "shared/atomic.h"
 
 #if USE_WINSVC
 #include <winsvc.h>
@@ -33,8 +34,8 @@ static SERVICE_STATUS_HANDLE    statusHandle;
 static jmp_buf                  exitBuf;
 #endif
 
-static volatile BOOL            shouldExit;
-static volatile BOOL            errorEntered;
+static atomic_int               shouldExit;
+static atomic_int               errorEntered;
 
 static LARGE_INTEGER            timer_freq;
 
@@ -593,10 +594,10 @@ void Sys_SetConsoleTitle(const char *title)
 
 static BOOL WINAPI Sys_ConsoleCtrlHandler(DWORD dwCtrlType)
 {
-    if (errorEntered) {
+    if (atomic_load(&errorEntered)) {
         exit(1);
     }
-    shouldExit = TRUE;
+    atomic_store(&shouldExit, TRUE);
     Sleep(INFINITE);
     return TRUE;
 }
@@ -825,9 +826,9 @@ void Sys_Error(const char *error, ...)
         longjmp(exitBuf, 1);
 #endif
 
-    errorEntered = TRUE;
+    atomic_store(&errorEntered, TRUE);
 
-    if (shouldExit || (sys_exitonerror && sys_exitonerror->integer))
+    if (atomic_load(&shouldExit) || (sys_exitonerror && sys_exitonerror->integer))
         exit(1);
 
 #if USE_SYSCON
@@ -1229,7 +1230,7 @@ static int Sys_Main(int argc, char **argv)
     Qcommon_Init(argc, argv);
 
     // main program loop
-    while (!shouldExit)
+    while (!atomic_load(&shouldExit))
         Qcommon_Frame();
 
     Com_Quit(NULL, ERR_DISCONNECT);
@@ -1238,43 +1239,6 @@ static int Sys_Main(int argc, char **argv)
 
 #if USE_CLIENT
 
-#define MAX_LINE_TOKENS    128
-
-static char     *sys_argv[MAX_LINE_TOKENS];
-static int      sys_argc;
-
-/*
-===============
-Sys_ParseCommandLine
-
-===============
-*/
-static void Sys_ParseCommandLine(char *line)
-{
-    sys_argc = 1;
-    sys_argv[0] = APPLICATION;
-    while (*line) {
-        while (*line && *line <= 32) {
-            line++;
-        }
-        if (*line == 0) {
-            break;
-        }
-        sys_argv[sys_argc++] = line;
-        while (*line > 32) {
-            line++;
-        }
-        if (*line == 0) {
-            break;
-        }
-        *line = 0;
-        if (sys_argc == MAX_LINE_TOKENS) {
-            break;
-        }
-        line++;
-    }
-}
-
 /*
 ==================
 WinMain
@@ -1290,9 +1254,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
 
     hGlobalInstance = hInstance;
 
-    Sys_ParseCommandLine(lpCmdLine);
-
-    return Sys_Main(sys_argc, sys_argv);
+    return Sys_Main(__argc, __argv);
 }
 
 #else // USE_CLIENT
@@ -1305,7 +1267,7 @@ static int      sys_argc;
 static void WINAPI ServiceHandler(DWORD fdwControl)
 {
     if (fdwControl == SERVICE_CONTROL_STOP) {
-        shouldExit = TRUE;
+        atomic_store(&shouldExit, TRUE);
     }
 }