diff --git a/ui/config.go b/ui/config.go
index 999a379..e524e7b 100644
--- a/ui/config.go
+++ b/ui/config.go
@@ -7,36 +7,37 @@ import (
 )
 
 type Config struct {
+	Os            string
 	DNS           string `json:"dns"` // todo
 	EncryptionKey string `json:"encryption_key"`
 	SocksPort     string `json:"socks_port"`
 	ConferenceID  string `json:"conference_id"`
 }
 
-func getConfigPath() string {
-	home, err := os.UserHomeDir()
+func (p *Program) getConfigPath() string {
+	dir, err := os.UserConfigDir()
 	if err != nil {
-		log("WARNING: Could not get home directory: %v", err)
-		return "./olcrtc_config.json"
+		log("WARNING: Could not get system config directory: %v", err)
+		return "config.json"
 	}
-	configDir := filepath.Join(home, ".olcrtc")
+	configDir := filepath.Join(dir, "olcrtc")
 	if err := os.MkdirAll(configDir, 0755); err != nil {
 		log("WARNING: Could not create config directory: %v", err)
 	}
 	return filepath.Join(configDir, "config.json")
+
 }
 
-func loadConfig() *Config {
-	configPath := getConfigPath()
+func (p *Program) loadConfig() *Config {
+	configPath := p.getConfigPath()
 	log("Loading config from: %s", configPath)
-
+	// default values
 	cfg := &Config{
 		DNS:           "1.1.1.1",
 		EncryptionKey: "",
 		SocksPort:     "1080",
 		ConferenceID:  "",
 	}
-
 	data, err := os.ReadFile(configPath)
 	if err != nil {
 		if os.IsNotExist(err) {
@@ -46,12 +47,10 @@ func loadConfig() *Config {
 		}
 		return cfg
 	}
-
-	if err := json.Unmarshal(data, cfg); err != nil {
+	if err := json.Unmarshal(data, p.Config); err != nil {
 		log("WARNING: Could not parse config file: %v", err)
 		return cfg
 	}
-
 	log("Config loaded successfully")
 	return cfg
 }
@@ -66,7 +65,7 @@ func (p *Program) saveConfig(dns, encryptionKey, socksPort, conferenceID string)
 		ConferenceID:  conferenceID,
 	}
 
-	configPath := getConfigPath()
+	configPath := p.getConfigPath()
 	data, err := json.MarshalIndent(p.Config, "", "  ")
 	if err != nil {
 		log("ERROR: Could not marshal config: %v", err)
diff --git a/ui/main.go b/ui/main.go
index e67f12f..04f0347 100644
--- a/ui/main.go
+++ b/ui/main.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"os/exec"
+	"runtime"
 
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/app"
@@ -27,11 +28,14 @@ func main() {
 
 func NewProgram() *Program {
 	log("Initializing program...")
-	cfg := loadConfig()
+	uOs := runtime.GOOS
+	log("RUNTIME: Detected OS - %v", uOs)
 	p := &Program{
-		App:    app.New(),
-		Config: cfg,
+		App: app.New(),
 	}
+	cfg := p.loadConfig()
+	cfg.Os = uOs
+	p.Config = cfg
 	p.buildRunString(cfg.ConferenceID, cfg.EncryptionKey, cfg.SocksPort, cfg.DNS)
 	return p
 }
diff --git a/ui/process.go b/ui/process.go
index 15b1daf..253b868 100644
--- a/ui/process.go
+++ b/ui/process.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"runtime"
 	"time"
 )
 
@@ -16,7 +17,13 @@ func (p *Program) olcrtcRun() {
 		return
 	}
 
-	p.Cmd = exec.Command("sh", "-c", p.RunString)
+	var cmd *exec.Cmd
+	if runtime.GOOS == "windows" {
+		cmd = exec.Command("cmd.exe", "/C", p.RunString)
+	} else {
+		cmd = exec.Command("sh", "-c", p.RunString)
+	}
+	p.Cmd = cmd
 	err := p.Cmd.Start()
 	if err != nil {
 		log("ERROR: Failed to start olcrtc: %v", err)
diff --git a/ui/ui.go b/ui/ui.go
index 5627f6d..c336be9 100644
--- a/ui/ui.go
+++ b/ui/ui.go
@@ -61,8 +61,14 @@ func (p *Program) buildRunString(conferenceId, encryptionKey, socksPort, dns str
 	log("  Encryption Key: %s", encryptionKey)
 	log("  Socks Port: %s", socksPort)
 	log("  DNS Server: %s", dns)
-
-	p.RunString = fmt.Sprintf("./olcrtc -mode cnc -id \"%s\" -key \"%s\" -socks-port %s", conferenceId, encryptionKey, socksPort)
+	switch p.Config.Os {
+	case "windows":
+		p.RunString = fmt.Sprintf("olcrtc.exe -mode cnc -id \"%s\" -key \"%s\" -socks-port %s", conferenceId, encryptionKey, socksPort)
+	case "linux", "darwin":
+		p.RunString = fmt.Sprintf("./olcrtc -mode cnc -id \"%s\" -key \"%s\" -socks-port %s", conferenceId, encryptionKey, socksPort)
+	default: // in case for freeBSD and etc
+		p.RunString = fmt.Sprintf("olcrtc -mode cnc -id \"%s\" -key \"%s\" -socks-port %s", conferenceId, encryptionKey, socksPort)
+	}
 	log("Generated command: %s", p.RunString)
 }