diff --git a/Build-Sample.ps1 b/Build-Sample.ps1
index 8c614bd25..093ba1ed9 100644
--- a/Build-Sample.ps1
+++ b/Build-Sample.ps1
@@ -147,39 +147,42 @@ $myexit=0
 # If we fail at first, but succeed at either of next two attempts, then it is a sporadic failure.
 # If we even at third attempt fail, then it is a true failure.
 #
-for ($i=0; $i -le 2; $i++) {
+for ($i = 0; $i -lt 3; $i++)
+{
+    $binLogFilePath = "$LogFilesDirectory\$SampleName.$Configuration.$Platform.$i.binlog"
     $errorLogFilePath = "$LogFilesDirectory\$SampleName.$Configuration.$Platform.$i.err"
     $warnLogFilePath = "$LogFilesDirectory\$SampleName.$Configuration.$Platform.$i.wrn"
     $OutLogFilePath = "$LogFilesDirectory\$SampleName.$Configuration.$Platform.$i.out"
 
-    msbuild $solutionFile -clp:Verbosity=m -t:rebuild -property:Configuration=$Configuration -property:Platform=$Platform -p:TargetVersion=Windows10 -p:InfVerif_AdditionalOptions="$InfVerif_AdditionalOptions" -warnaserror -flp1:errorsonly`;logfile=$errorLogFilePath -flp2:WarningsOnly`;logfile=$warnLogFilePath -noLogo > $OutLogFilePath
-    if ($env:WDS_WipeOutputs -ne $null)
+    msbuild $solutionFile -clp:Verbosity=m -t:rebuild -property:Configuration=$Configuration -property:Platform=$Platform -p:TargetVersion=Windows10 -p:InfVerif_AdditionalOptions="$InfVerif_AdditionalOptions" -warnaserror -binaryLogger:LogFile=$binLogFilePath`;ProjectImports=None -flp1:errorsonly`;logfile=$errorLogFilePath -flp2:WarningsOnly`;logfile=$warnLogFilePath -noLogo > $OutLogFilePath
+    if ($null -ne $env:WDS_WipeOutputs)
     {
-        Write-Verbose ("WipeOutputs: "+$Directory+" "+(((Get-Volume ($DriveLetter=(Get-Item ".").PSDrive.Name)).SizeRemaining/1GB)))
-        Get-ChildItem -path $Directory -Recurse -Include x64|Remove-Item -Recurse
-        Get-ChildItem -path $Directory -Recurse -Include arm64|Remove-Item -Recurse
+        Write-Verbose ("WipeOutputs: " + $Directory + " " + (((Get-Volume (Get-Item ".").PSDrive.Name).SizeRemaining / 1GB)))
+        Get-ChildItem -path $Directory -Recurse -Include x64 | Remove-Item -Recurse
+        Get-ChildItem -path $Directory -Recurse -Include arm64 | Remove-Item -Recurse
     }
     if ($LASTEXITCODE -eq 0)
     {
         # We succeeded building. 
-        # If at first attempt, then $myexit=0
-        # If at later attempt, then $myexit=2
+        # If it was at a later attempt, let the caller know with a different exit code.
         if ($i -eq 0)
         {
-            $myexit=0
+            $myexit = 0
         }
         else
         {
-            $myexit=2
+            $myexit = 2
         }
-         break;
+        # Remove binlog on success to save space; keep otherwise to diagnose issues.
+        Remove-Item $binLogFilePath
+        break;
     }
     else
     {
         # We failed building. 
         # Let us sleep for a bit.
         # Then let the while loop do its thing and re-run.
-        sleep 1
+        Start-Sleep 1
         if ($Verbose)
         {
             Write-Warning "`u{274C} Build failed. Retrying to see if sporadic..."
diff --git a/Build-SampleSet.ps1 b/Build-SampleSet.ps1
index f6765395a..270a7eaa1 100644
--- a/Build-SampleSet.ps1
+++ b/Build-SampleSet.ps1
@@ -14,7 +14,7 @@ $root = Get-Location
 if (-not $env:VSCMD_VER) {
     Import-Module (Resolve-Path "$env:ProgramFiles\Microsoft Visual Studio\2022\*\Common7\Tools\Microsoft.VisualStudio.DevShell.dll")
     Enter-VsDevShell -VsInstallPath (Resolve-Path "$env:ProgramFiles\Microsoft Visual Studio\2022\*")
-    cd $root
+    Set-Location $root
 }
 
 $ThrottleFactor = 5
@@ -97,7 +97,7 @@ else {
 
     # Dump all environment variables so as to help debug error:
     Write-Output "Environment variables {"
-    gci env:* | sort-object name
+    Get-ChildItem env:* | Sort-Object name
     Write-Output "Environment variables }"
 
     Write-Error "Could not determine build environment."
@@ -105,11 +105,17 @@ else {
 }
 #
 # Get the WDK extension version from installed packages
-$wdk_extension_ver = ls "${env:ProgramData}\Microsoft\VisualStudio\Packages\Microsoft.Windows.DriverKit,version=*" | Select -ExpandProperty Name
+$wdk_extension_ver = Get-ChildItem "${env:ProgramData}\Microsoft\VisualStudio\Packages\Microsoft.Windows.DriverKit,version=*" | Select-Object -ExpandProperty Name
 $wdk_extension_ver = ([regex]'(\d+\.)(\d+\.)(\d+\.)(\d+)').Matches($wdk_extension_ver).Value
 if (-not $wdk_extension_ver) {
-    Write-Error "No version of the WDK Visual Studio Extension could be found. The WDK Extension is not installed."
-    exit 1
+    # Be lenient with EWDK builds that do not include the package information
+    if ($build_environment -match '^EWDK') {
+        $wdk_extension_ver = "(package not found)"
+    }
+    else {
+        Write-Error "No version of the WDK Visual Studio Extension could be found. The WDK Extension is not installed."
+        exit 1
+    }
 }
 #
 #
@@ -348,7 +354,7 @@ $Results = $jresult.Results
 Write-Output "Built all combinations."
 Write-Output ""
 Write-Output "Elapsed time:         $min minutes, $seconds seconds."
-Write-Output ("Disk Remaining (GB):  " + (((Get-Volume ($DriveLetter = (Get-Item ".").PSDrive.Name)).SizeRemaining / 1GB)))
+Write-Output ("Disk Remaining (GB):  " + (((Get-Volume (Get-Item ".").PSDrive.Name).SizeRemaining / 1GB)))
 Write-Output ("Samples:              " + $sampleSet.Count)
 Write-Output ("Configurations:       " + $Configurations.Count + " (" + $Configurations + ")")
 Write-Output ("Platforms:            " + $Platforms.Count + " (" + $Platforms + ")")