diff --git a/BITS/BackgroundCopyJob.cs b/BITS/BackgroundCopyJob.cs
index d4773887..66c890b9 100644
--- a/BITS/BackgroundCopyJob.cs
+++ b/BITS/BackgroundCopyJob.cs
@@ -307,7 +307,7 @@ namespace Vanara.IO
 		/// be set before the first call to IBackgroundCopyJob::Resume that starts the job.
 		/// </para>
 		/// </remarks>
-		[DefaultValue(null)]
+		[DefaultValue("GET")]
 		public string HttpMethod
 		{
 			get => RunAction(() => IHttpOp2.GetHttpMethod());
diff --git a/BITS/BackgroundCopyManager.cs b/BITS/BackgroundCopyManager.cs
index 7cecf918..cfcdda9f 100644
--- a/BITS/BackgroundCopyManager.cs
+++ b/BITS/BackgroundCopyManager.cs
@@ -31,7 +31,7 @@ namespace Vanara.IO
 
 				static Version GetVer()
 				{
-					var fi = System.Diagnostics.FileVersionInfo.GetVersionInfo(System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.System), "qmgr.dll"));
+					var fi = System.Diagnostics.FileVersionInfo.GetVersionInfo(Environment.ExpandEnvironmentVariables(@"%WinDir%\sysnative\qmgr.dll"));
 					return $"{fi.FileMajorPart}.{fi.FileMinorPart}" switch
 					{
 						"7.8" when fi.FileBuildPart >= 18362 => new Version(10, 3),
diff --git a/UnitTests/BITS/JobPropTest.cs b/UnitTests/BITS/JobPropTest.cs
index e4d9c33e..3bdbe1eb 100644
--- a/UnitTests/BITS/JobPropTest.cs
+++ b/UnitTests/BITS/JobPropTest.cs
@@ -50,6 +50,9 @@ namespace Vanara.IO.Tests
 			Assert.That(() => job.HighPerformance = true, Throws.Nothing);
 			Assert.That(job.HighPerformance, Is.EqualTo(true));
 
+			Assert.That(job.HttpMethod, Is.EqualTo(job.GetDefVal<string>(nameof(job.HttpMethod))));
+			Assert.That(() => job.MakeCustomHeadersWriteOnly(), Throws.Nothing);
+
 			Assert.That(job.ID, Is.Not.EqualTo(Guid.Empty));
 			
 			Assert.That(job.JobType, Is.EqualTo(BackgroundCopyJobType.Download));
@@ -90,7 +93,6 @@ namespace Vanara.IO.Tests
 			Assert.That(() => job.OnDemand = true, Throws.Nothing);
 			Assert.That(job.OnDemand, Is.EqualTo(true));
 
-
 			using var identity = WindowsIdentity.GetCurrent();
 			Assert.That(job.Owner, Is.EqualTo(identity.User));