diff --git a/deploy/FortFirewall.iss b/deploy/FortFirewall.iss
index 20a3d6f5..4e25942a 100644
--- a/deploy/FortFirewall.iss
+++ b/deploy/FortFirewall.iss
@@ -3,8 +3,8 @@
 
 #include SRC_PATH + "\version\fort_version.h"
 
-#define APP_EXE_NAME	"FortFirewall.exe"
-#define APP_ICO_NAME	"FortFirewall.ico"
+#define APP_EXE_NAME	APP_BASE + ".exe"
+#define APP_ICO_NAME	APP_BASE + ".ico"
 
 #define APP_EXE		StringChange("{app}\%exe%", "%exe%", APP_EXE_NAME)
 
@@ -12,7 +12,8 @@
 ; NOTE: The value of AppId uniquely identifies this application.
 ; Do not use the same AppId value in installers for other applications.
 ; (To generate a new GUID, click Tools | Generate GUID inside the IDE.)
-AppMutex={#APP_NAME}
+SetupMutex=Global\Setup{#APP_BASE}
+AppMutex={#APP_NAME},{#APP_BASE},Global\{#APP_BASE}
 AppName={#APP_NAME}
 AppVersion={#APP_VERSION_STR}
 VersionInfoVersion={#APP_VERSION_STR}
@@ -27,7 +28,7 @@ DefaultDirName={pf32}\{#APP_NAME}
 AlwaysShowDirOnReadyPage=yes
 AlwaysShowGroupOnReadyPage=yes
 AllowNoIcons=yes
-OutputBaseFilename=FortFirewall-{#APP_VERSION_STR}
+OutputBaseFilename={#APP_BASE}-{#APP_VERSION_STR}
 Uninstallable=not IsTaskSelected('portable')
 UninstallFilesDir={app}\uninst
 UninstallDisplayIcon={uninstallexe}
@@ -47,7 +48,7 @@ Name: "portable"; Description: "Portable"; Flags: unchecked
 
 [Files]
 Source: "build\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs
-Source: "FortFirewall.exe.example.ini"; DestDir: "{app}"
+Source: "{#APP_EXE_NAME}.example.ini"; DestDir: "{app}"
 Source: "README.portable"; DestDir: "{app}"; Tasks: portable
 
 [Registry]
diff --git a/src/ui/FortFirewall.rc b/src/ui/FortFirewall.rc
index 5cffce3b..a7f211c1 100644
--- a/src/ui/FortFirewall.rc
+++ b/src/ui/FortFirewall.rc
@@ -9,13 +9,13 @@
 #define VER_PRODUCTVERSION_STR      APP_VERSION_STR
 
 #define VER_COMPANYNAME_STR         APP_PUBLISHER
-#define VER_FILEDESCRIPTION_STR     "Fort Firewall"
-#define VER_INTERNALNAME_STR        "FortFirewall"
+#define VER_FILEDESCRIPTION_STR     APP_NAME
+#define VER_INTERNALNAME_STR        APP_BASE
 #define VER_LEGALCOPYRIGHT_STR      APP_LEGALCOPYRIGHT
 #define VER_LEGALTRADEMARKS1_STR    ""
 #define VER_LEGALTRADEMARKS2_STR    ""
 #define VER_ORIGINALFILENAME_STR    "FortFirewall.exe"
-#define VER_PRODUCTNAME_STR         "Fort Firewall"
+#define VER_PRODUCTNAME_STR         APP_NAME
 
 #ifdef _DEBUG
 #define VER_DEBUG (VS_FF_PRIVATEBUILD|VS_FF_PRERELEASE|VS_FF_DEBUG)
diff --git a/src/ui/fortsettings.cpp b/src/ui/fortsettings.cpp
index 59c4519f..e9ca7a3a 100644
--- a/src/ui/fortsettings.cpp
+++ b/src/ui/fortsettings.cpp
@@ -51,7 +51,7 @@ int FortSettings::appVersion() const
 void FortSettings::setupGlobal()
 {
     // Use global settings from program's working directory.
-    const QSettings settings("FortFirewall.exe.ini", QSettings::IniFormat);
+    const QSettings settings(APP_BASE ".exe.ini", QSettings::IniFormat);
 
     // High-DPI scale factor rounding policy
     const auto dpiPolicy = settings.value("global/dpiPolicy").toString();
@@ -186,7 +186,7 @@ void FortSettings::processArguments(const QStringList &args, EnvManager *envMana
 
 void FortSettings::setupIni()
 {
-    const QString iniPath(profilePath() + "FortFirewall.ini");
+    const QString iniPath(profilePath() + (APP_BASE ".ini"));
 
     FileUtil::makePath(profilePath());
     FileUtil::makePath(statPath());
@@ -211,12 +211,12 @@ void FortSettings::setErrorMessage(const QString &errorMessage)
 
 QString FortSettings::statFilePath() const
 {
-    return statPath() + QLatin1String("FortFirewall.stat");
+    return statPath() + (APP_BASE ".stat");
 }
 
 QString FortSettings::confFilePath() const
 {
-    return profilePath() + QLatin1String("FortFirewall.config");
+    return profilePath() + (APP_BASE ".config");
 }
 
 void FortSettings::readConfIni(FirewallConf &conf) const
diff --git a/src/ui/main.cpp b/src/ui/main.cpp
index 3a6b26b6..482ca9dd 100644
--- a/src/ui/main.cpp
+++ b/src/ui/main.cpp
@@ -60,7 +60,7 @@ int main(int argc, char *argv[])
 
 #ifdef APP_SINGLE_INSTANCE
     // Check running instance
-    if (!OsUtil::createGlobalMutex(APP_NAME)) {
+    if (!OsUtil::createGlobalMutex(APP_BASE)) {
         QMessageBox::critical(nullptr, QString(), "Application is already running!");
         return FORT_ERROR_INSTANCE;
     }
diff --git a/src/ui/util/startuputil.cpp b/src/ui/util/startuputil.cpp
index 97876a0a..1cf97aad 100644
--- a/src/ui/util/startuputil.cpp
+++ b/src/ui/util/startuputil.cpp
@@ -13,7 +13,7 @@
 
 namespace {
 
-const char *const serviceName = "FortFirewallSvc";
+const char *const serviceName = APP_BASE "Svc";
 
 const char *const regCurUserRun =
         R"(HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run)";
diff --git a/src/version/fort_version.h b/src/version/fort_version.h
index 8b8b7bfe..0ace3447 100644
--- a/src/version/fort_version.h
+++ b/src/version/fort_version.h
@@ -8,6 +8,7 @@
 #define APP_VERSION		0x030400
 
 #define APP_NAME		"Fort Firewall"
+#define APP_BASE		"FortFirewall"
 #define APP_PUBLISHER		"Nodir Temirkhodjaev"
 #define APP_LEGALCOPYRIGHT	"Copyright (C) 2015-2021 Nodir Temirkhodjaev. All Rights Reserved."
 #define APP_URL			"https://github.com/tnodir/fort"