fixed bug where windows files could not be found

201-vm-vsts-agent/scripts/InstallVstsAgent.ps1

@@ -51,7 +51,8 @@ do
     Write-Verbose "Trying to get download URL for latest VSTS agent release..."
     $latestRelease = Invoke-RestMethod -Uri "https://api.github.com/repos/Microsoft/vsts-agent/releases"
 	$latestRelease = $latestRelease | Where-Object assets -ne $null | Sort-Object created_at -Descending | Select-Object -First 1
-    $latestReleaseDownloadUrl = ($latestRelease.assets | ? { $_.name -like "*win-x64*" }).browser_download_url
+    $assetsURL = ($latestRelease.assets).browser_download_url
+    $latestReleaseDownloadUrl = ((Invoke-RestMethod -Uri $assetsURL) -match 'win').downloadurl
     Invoke-WebRequest -Uri $latestReleaseDownloadUrl -Method Get -OutFile "$agentTempFolderName\agent.zip"
     Write-Verbose "Downloaded agent successfully on attempt $retries" -verbose
     break