Add some extra features

dx

@@ -1,6 +1,3 @@
-
-# This script is hosted on <b>https://get.msvc.win/</b> for <b><a href="https://msvc.win/">MSVC Win Project</a></b><br />To get started, run <b>irm get.msvc.win | iex</b> inside of PowerShell<hr><pre>
-
 Add-Type -AssemblyName System.IO.Compression.FileSystem
 
 function Main {
@@ -41,20 +38,40 @@ function Main {
     $aria2Dir = Join-Path $tempDir "aria2"
     $aria2Exe = Join-Path $aria2Dir "aria2c.exe"
 
-    # --- Check User IP location---
+    # --- Check User IP location ---
 
     $geoInfo = Invoke-RestMethod -Uri 'https://ipapi.co/json/'
     $countryCode = $geoInfo.country
 
+    # --- Check Proxy Settings ---
+    $webProxy = [System.Net.WebRequest]::GetSystemWebProxy()
+    $uri = New-Object Uri("http://example.com")
+    $proxyUri = $webProxy.GetProxy($uri)
+
+    $useProxy = $proxyUri.Host -ne "example.com"
+    if ($useProxy) {
+        $proxyAddress = $proxyUri.Authority
+        Write-Host "Detected system proxy: $proxyAddress"
+    }
+
     # --- Ensure aria2c is available ---
     if (-not (Test-Path $aria2Exe)) {
         Write-Host "Downloading aria2c..."
         $aria2Zip = Join-Path $tempDir "aria2.zip"
         if ($countryCode -eq 'CN') {
             $aria2Url = "https://gitee.com/HikariCalyx/OSTRemote/releases/download/v1.0/aria2-1.37.0-win-32bit-build1.zip"
+            # Workaround for specific Chinese ISPs that would not resolve domains properly like aka.ms
+            $regionalWorkaround = "--async-dns-server=223.5.5.5"
         }
         else {
-            $aria2Url = "https://github.com/aria2/aria2/releases/download/release-1.37.0/aria2-1.37.0-win-32bit-build1.zip"
+            $aria2Url = "https://github.com/aria2/aria2/releases/download/release-1.37.0/aria2-1.37.0-win-64bit-build1.zip"
+            $regionalWorkaround = ""
+        }
+        if ($useProxy) {
+            $regionalWorkaround = "--all-proxy=$proxyAddress"
+        }
+        if ($procArch -ne "AMD64") {
+            $aria2Url = $aria2Url.Replace("64bit", "32bit")
         }
         Invoke-WebRequest -Uri $aria2Url -OutFile $aria2Zip
         Expand-Archive -Path $aria2Zip -DestinationPath $aria2Dir -Force
@@ -79,6 +96,7 @@ function Main {
             "--max-connection-per-server=8",
             "--split=8",
             "--min-split-size=1M",
+            "$regionalWorkaround",
             "`"$($item.Url)`""
         ) -NoNewWindow -Wait
     }