diff --git a/CHANGES b/CHANGES
index ebdb8800..0561db52 100644
--- a/CHANGES
+++ b/CHANGES
@@ -986,7 +986,7 @@ Version history
   * miscellaneous
     - Issue 18622: removed outdated information regarding link definition when generated by Visual D DLL project.
 
-unreleased Version 0.48.0
+2018-12-02 Version 0.48.0
 
   * installation
     - installer and binaries now digitally signed by the "D Language Foundation"
@@ -1055,3 +1055,19 @@ unreleased Version 0.48.0
     - added option to not indent case statements
   * fixed "Compile and Run" on selection
   * fix help via F1 for dmd 2.072+
+
+2018-12-22 Version 0.48.1
+  * dparser:
+    - fix Issue 19411: increase stack size for DParserCOMServer
+    - goto definition on alias: jump to base definition if caret on alias
+  * build system
+    - fix Issue 19445: Linking to lib under "c:\Program Files (x86)" does not work in Visual D
+  * dustmite
+    - fix copying project for dustmite with relative paths
+    - move command line options to new setup page, add dustmite command line options
+  * cv2pdb
+    - fix crash if mspdb*.dll cannot be loaded from path
+    - emit "elemtype[keytype]" instead of "dAssocArray"
+    - fix missing line numbers for new versions of mspdb (e.g. 14.16.27012/VS 15.9)
+  * mago: variables captured from stack of outer function not displayed in locals
+
diff --git a/Makefile b/Makefile
index b5fe683b..19d6e839 100644
--- a/Makefile
+++ b/Makefile
@@ -54,6 +54,7 @@ vdserver:
 
 dparser:
 	cd vdc\abothe && $(MSBUILD15) vdserver.sln /p:Configuration=Release;Platform="Any CPU" /p:TargetFrameworkVersion=4.5 /p:DefineConstants=NET40 /t:Rebuild
+	editbin /STACK:0x800000 bin\Release\DParserCOMServer\DParserCOMServer.exe
 
 dparser_test:
 	set PLATFORM="Any CPU" && dotnet test vdc\abothe\VDServer.sln -c Release
diff --git a/VERSION b/VERSION
index a0f6003f..f688c491 100644
--- a/VERSION
+++ b/VERSION
@@ -1,5 +1,5 @@
 #define VERSION_MAJOR      0
 #define VERSION_MINOR      48
-#define VERSION_REVISION   0
+#define VERSION_REVISION   1
 #define VERSION_BETA       
 #define VERSION_BUILD      0
diff --git a/doc/StartPage.dd b/doc/StartPage.dd
index 614b111e..e7d0b3e5 100644
--- a/doc/StartPage.dd
+++ b/doc/StartPage.dd
@@ -54,6 +54,13 @@ $(H2 News)
 $(P $(LINK2 VersionHistory.html, Full version history and complete details...)
 )
 
+2018-12-22 Version 0.48.1
+$(UL
+  $(LI goto definition on alias: jump to base definition if caret on alias)
+  $(LI cv2pdb: fix missing line numbers for new versions of mspdb*.dll)
+  $(LI mago: variables captured from stack of outer function not displayed in locals)
+)
+
 2018-12-02 Version 0.48.0
 $(UL
   $(LI installer and binaries now digitally signed by the "D Language Foundation")
diff --git a/doc/VersionHistory.dd b/doc/VersionHistory.dd
index 14a36bf2..4aa5562b 100644
--- a/doc/VersionHistory.dd
+++ b/doc/VersionHistory.dd
@@ -1,5 +1,34 @@
 Ddoc
 
+$(H2 2018-12-22 Version 0.48.1)
+ $(UL
+  $(LI dparser:
+   $(UL
+    $(LI fix Issue 19411: increase stack size for DParserCOMServer)
+    $(LI goto definition on alias: jump to base definition if caret on alias)
+  ))
+  $(LI build system
+   $(UL
+    $(LI fix Issue 19445: Linking to lib under "c:\Program Files (x86)" does not work in Visual D)
+  ))
+  $(LI dustmite
+   $(UL
+    $(LI fix copying project for dustmite with relative paths)
+    $(LI move command line options to new setup page, add dustmite command line options)
+  ))
+  $(LI cv2pdb
+   $(UL
+    $(LI fix crash if mspdb*.dll cannot be loaded from path)
+    $(LI emit "elemtype[keytype]" instead of "dAssocArray")
+    $(LI fix missing line numbers for new versions of mspdb*.dll (e.g. 14.16.27012/VS 15.9))
+  ))
+  $(LI mago
+   $(UL
+     $(LI variables captured from stack of outer function not displayed in locals)
+  ))
+ )
+
+
 $(H2 2018-12-02 Version 0.48.0)
  $(UL
   $(LI installation
diff --git a/vdc/abothe/comserver/CodeSemantics/SymbolDefinitionGenerator.cs b/vdc/abothe/comserver/CodeSemantics/SymbolDefinitionGenerator.cs
index a2f7db78..d54fd7c0 100644
--- a/vdc/abothe/comserver/CodeSemantics/SymbolDefinitionGenerator.cs
+++ b/vdc/abothe/comserver/CodeSemantics/SymbolDefinitionGenerator.cs
@@ -27,6 +27,9 @@ protected override Tuple<CodeLocation, CodeLocation, string> Process(EditorData
 			var definitionSourceFilename = new StringBuilder();
 			if (rr != null)
 			{
+				var at = rr as AliasedType;
+				if (at != null && at.Definition.Location == sr.Location)
+					rr = at.Base;
 				DNode n = null;
 				foreach (var t in AmbiguousType.TryDissolve(rr))
 				{
diff --git a/visuald/chiernode.d b/visuald/chiernode.d
index 85e07b2f..f4527c86 100644
--- a/visuald/chiernode.d
+++ b/visuald/chiernode.d
@@ -60,7 +60,8 @@ class CHierNode : DisposingDispatchObject
 {
 	static void shared_static_this()
 	{
-		gVsItemMap_sync = new Object;
+		if (!gVsItemMap_sync)
+			gVsItemMap_sync = new Object;
 	}
 	
 	this()
diff --git a/visuald/config.d b/visuald/config.d
index dc531efd..c538be56 100644
--- a/visuald/config.d
+++ b/visuald/config.d
@@ -963,6 +963,7 @@ class ProjectOptions
 			string s;
 			foreach(i, file; lnkfiles)
 			{
+				file = unquoteArgument(file);
 				if(toLower(extension(file)) != ext)
 					continue;
 				if(s.length > 0)
diff --git a/visuald/dpackage.d b/visuald/dpackage.d
index d267efb5..321a7bc3 100644
--- a/visuald/dpackage.d
+++ b/visuald/dpackage.d
@@ -407,6 +407,8 @@ class Package : DisposingComObject,
 			tpp = newCom!LdcDirPropertyPage(mOptions);
 		else if(*rguidPage == g_DubPropertyPage)
 			tpp = newCom!DubPropertyPage(mOptions);
+		else if(*rguidPage == g_CmdLinePropertyPage)
+			tpp = newCom!CmdLinePropertyPage(mOptions);
 		else if(*rguidPage == g_ToolsProperty2Page)
 			tpp = newCom!ToolsProperty2Page(mOptions);
 		else if(*rguidPage == g_ColorizerPropertyPage)
@@ -1353,6 +1355,7 @@ class GlobalOptions
 	string compileAndRunOpts;
 	string compileAndDbgOpts;
 	int compileAndDbgEngine;
+	string dustmiteOpts;
 
 	string[] coverageBuildDirs;
 	string[] coverageExecutionDirs;
@@ -1837,6 +1840,7 @@ class GlobalOptions
 			compileAndRunOpts = getStringOpt("compileAndRunOpts", "-unittest");
 			compileAndDbgOpts = getStringOpt("compileAndDbgOpts", "-g");
 			compileAndDbgEngine = getIntOpt("compileAndDbgEngine", 0);
+			dustmiteOpts      = getStringOpt("dustmiteOpts", "--strip-comments --split *.bat:lines");
 
 			dubPath           = getStringOpt("dubPath", "dub");
 			dubOptions        = getStringOpt("dubOptions", "");
@@ -1961,6 +1965,7 @@ class GlobalOptions
 			keyToolOpts.Set("compileAndRunOpts",   toUTF16(compileAndRunOpts));
 			keyToolOpts.Set("compileAndDbgOpts",   toUTF16(compileAndDbgOpts));
 			keyToolOpts.Set("compileAndDbgEngine", compileAndDbgEngine);
+			keyToolOpts.Set("dustmiteOpts",        toUTF16(dustmiteOpts));
 
 			keyToolOpts.Set("coverageExecutionDirs", toUTF16(join(coverageExecutionDirs, ";")));
 			keyToolOpts.Set("coverageBuildDirs",   toUTF16(join(coverageBuildDirs, ";")));
diff --git a/visuald/dproject.d b/visuald/dproject.d
index c226321c..c89e7af3 100644
--- a/visuald/dproject.d
+++ b/visuald/dproject.d
@@ -2798,7 +2798,7 @@ HRESULT DustMiteProject()
 	if (msgRet != IDYES)
 		return S_FALSE;
 
-	string workdir = cfg.GetProjectDir();
+	string workdir = normalizeDir(cfg.GetProjectDir());
 
 	auto pane = getVisualDOutputPane();
 	scope(exit) release(pane);
@@ -2822,7 +2822,9 @@ HRESULT DustMiteProject()
 		}
 		pane.OutputString(_toUTF16z("created clean copy of the project in " ~ dustmitepath ~ "\n"));
 
-		nworkdir = npath; // TODO
+		auto reldir = makeRelative(workdir, commonpath);
+		npath = makeDirnameCanonical(npath, null);
+		nworkdir = makeDirnameCanonical(reldir, npath);
 		string nintdir = makeFilenameAbsolute(cfg.GetIntermediateDir(), nworkdir);
 		string noutdir = makeFilenameAbsolute(cfg.GetOutDir(), nworkdir);
 		mkdirRecurse(nworkdir);
@@ -2833,7 +2835,7 @@ HRESULT DustMiteProject()
 		std.file.write(normalizeDir(noutdir) ~ "empty.txt", "");
 
 		if (nworkdir != npath)
-			cmdline ~= "cd " ~ quoteFilename(makeRelative(nworkdir, npath));
+			cmdline ~= "cd " ~ quoteFilename(makeRelative(nworkdir, npath)) ~ "\n";
 		cmdline ~= cfg.getCommandLine(true, true, false);
 		cmdfile = npath ~ "build.dustmite.bat";
 		std.file.write(cmdfile, cmdline);
@@ -2844,7 +2846,7 @@ HRESULT DustMiteProject()
 		string intdir = makeFilenameAbsolute(cfg.GetIntermediateDir(), workdir);
 		mkdirRecurse(intdir);
 		dustfile = intdir ~ "\\dustmite.cmd";
-		string opts = "--strip-comments --split *.bat:lines";
+		string opts = Package.GetGlobalOptions().dustmiteOpts;
 		cmd = Package.GetGlobalOptions().findDmdBinDir() ~ "dustmite " ~ opts ~ " " ~ quoteFilename(npath[0..$-1]) ~ " \"" ~ dustcmd ~ "\"";
 		std.file.write(dustfile, cmd ~ "\npause\n");
 		std.process.spawnShell(quoteFilename(dustfile), null, std.process.Config.none, nworkdir);
@@ -2876,3 +2878,41 @@ class DustMiteThread : CBuilderThread
 
 	string mBuildDir;
 }
+
+unittest
+{
+	CHierNode.shared_static_this();
+	Package pkg = newCom!Package.addref();
+	scope(exit) pkg.release();
+	string tmpdir = normalizeDir(tempDir());
+	string projdir = tmpdir ~ "test/dustmite/project/";
+	string projfile = projdir ~ "project.vdproj";
+	string platform = "Win32", config = "Debug";
+	auto cfg = newCom!VCConfig(projfile, "test", platform, config);
+
+	Project prj = newCom!Project(Package.GetProjectFactory(), "test", projfile, platform, config);
+
+	mkdirRecurse(projdir);
+	string dfile1 = projdir ~ "dfile1.d";
+	std.file.write(dfile1, "// dfile1\n");
+	auto pFile1 = newCom!CFileNode("dfile1.d");
+	prj.GetRootNode().AddTail(pFile1);
+
+	mkdirRecurse(tmpdir ~ "test/dustmite/other");
+	string dfile2 = tmpdir ~ "test/dustmite/other/dfile2.d";
+	std.file.write(dfile2, "// dfile2\n");
+	auto pFile2 = newCom!CFileNode("../other/dfile2.d");
+	prj.GetRootNode().AddTail(pFile2);
+
+	string commonpath = commonProjectFolder(prj);
+	string dustmitepath = buildPath(dirName(commonpath), baseName(commonpath) ~ ".dustmite");
+	assert(dustmitepath == tmpdir ~ r"test\dustmite.dustmite");
+	if (std.file.exists(dustmitepath))
+		rmdirRecurse(dustmitepath);
+
+	string npath = copyProjectFolder(prj, dustmitepath);
+	assert(npath == normalizeDir(dustmitepath));
+
+	assert(std.file.exists(dustmitepath ~ r"\project\dfile1.d"));
+	assert(std.file.exists(dustmitepath ~ r"\other\dfile2.d"));
+}
diff --git a/visuald/hierutil.d b/visuald/hierutil.d
index 4e38803f..050b2f8e 100644
--- a/visuald/hierutil.d
+++ b/visuald/hierutil.d
@@ -713,7 +713,7 @@ string commonProjectFolder(Project proj)
 	searchNode(proj.GetRootNode(), delegate (CHierNode n)
 	{
 		if(CFileNode file = cast(CFileNode) n)
-			path = commonParentDir(path, makeFilenameAbsolute(file.GetFilename(), workdir));
+			path = commonParentDir(path, makeFilenameCanonical(file.GetFilename(), workdir));
 		return false;
 	});
 	return path;
diff --git a/visuald/pkgutil.d b/visuald/pkgutil.d
index cd1534d4..fbff7246 100644
--- a/visuald/pkgutil.d
+++ b/visuald/pkgutil.d
@@ -180,7 +180,7 @@ string _browseFile(T)(HWND parentHwnd, string title, string filter, string initd
 			auto rc = pIVsUIShell.GetSaveFileNameViaDlg(&ofn);
 
 		if (rc == S_OK)
-			return to!string(fileName);
+			return to_string(fileName.ptr);
 	}
 	return null;
 }
@@ -208,7 +208,7 @@ string browseDirectory(HWND parentHwnd, string title, string initdir = null)
 		bi.nMaxDirName = dirName.length;
 		bi.pwzInitialDir = toUTF16z(initdir);
 		if (pIVsUIShell.GetDirectoryViaBrowseDlg(&bi) == S_OK)
-			return to!string(dirName);
+			return to_string(dirName.ptr);
 	}
 	return null;
 }
diff --git a/visuald/propertypage.d b/visuald/propertypage.d
index 7f40f29a..88f838c6 100644
--- a/visuald/propertypage.d
+++ b/visuald/propertypage.d
@@ -2261,6 +2261,53 @@ class LdcDirPropertyPage : DirPropertyPage
 	}
 }
 
+///////////////////////////////////////////////////////////////////////////////
+class CmdLinePropertyPage : GlobalPropertyPage
+{
+	this(GlobalOptions options)
+	{
+		super(options);
+	}
+
+	enum ID_DUBPATH = 1011;
+
+	override string GetCategoryName() { return "D Options"; }
+	override string GetPageName() { return "Compile/Run/Debug/Dustmite"; }
+
+	override void CreateControls()
+	{
+		AddTitleLine("Compile and Run/Debug");
+		AddControl("Compile+Run options", mCompileAndRunOpts = new Text(mCanvas));
+		AddControl("Compile+Debug options", mCompileAndDbgOpts = new Text(mCanvas));
+		AddControl("   Debugger",       mCompileAndDbgEngine = new ComboBox(mCanvas, [ "Visual Studio", "Mago", "Visual Studio (x86 Mixed Mode)" ], false));
+		AddTitleLine("Dustmite");
+		AddControl("Command line options", mDustmiteOpts = new Text(mCanvas));
+	}
+
+	override void SetControls(GlobalOptions opts)
+	{
+		mCompileAndRunOpts.setText(opts.compileAndRunOpts);
+		mCompileAndDbgOpts.setText(opts.compileAndDbgOpts);
+		mCompileAndDbgEngine.setSelection(opts.compileAndDbgEngine);
+		mDustmiteOpts.setText(opts.dustmiteOpts);
+	}
+
+	override int DoApply(GlobalOptions opts, GlobalOptions refopts)
+	{
+		int changes = 0;
+		changes += changeOption(mCompileAndRunOpts.getText(), opts.compileAndRunOpts, refopts.compileAndRunOpts);
+		changes += changeOption(mCompileAndDbgOpts.getText(), opts.compileAndDbgOpts, refopts.compileAndDbgOpts);
+		changes += changeOption(mCompileAndDbgEngine.getSelection(), opts.compileAndDbgEngine, refopts.compileAndDbgEngine);
+		changes += changeOption(mDustmiteOpts.getText(), opts.dustmiteOpts, refopts.dustmiteOpts);
+		return changes;
+	}
+
+	Text mCompileAndRunOpts;
+	Text mCompileAndDbgOpts;
+	ComboBox mCompileAndDbgEngine;
+	Text mDustmiteOpts;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 class DubPropertyPage : GlobalPropertyPage
 {
@@ -2322,7 +2369,7 @@ class ToolsProperty2Page : GlobalPropertyPage
 	this(GlobalOptions options)
 	{
 		super(options);
-		kNeededLines = 17;
+		kNeededLines = 13;
 	}
 
 	override void CreateControls()
@@ -2344,10 +2391,6 @@ class ToolsProperty2Page : GlobalPropertyPage
 		//		   new ComboBox(mCanvas, [ "Do not delete file on disk", "Ask", "Delete file on disk" ]));
 		mLinesPerMultiLine = 2;
 		AddControl("JSON paths",        mJSNPath = new MultiLineText(mCanvas), 500);
-		AddTitleLine("Compile and Run/Debug");
-		AddControl("Compile+Run options", mCompileAndRunOpts = new Text(mCanvas));
-		AddControl("Compile+Debug options", mCompileAndDbgOpts = new Text(mCanvas));
-		AddControl("   Debugger",       mCompileAndDbgEngine = new ComboBox(mCanvas, [ "Visual Studio", "Mago", "Visual Studio (x86 Mixed Mode)" ], false));
 	}
 
 	override void SetControls(GlobalOptions opts)
@@ -2364,9 +2407,6 @@ class ToolsProperty2Page : GlobalPropertyPage
 		//mDeleteFiles.setSelection(opts.deleteFiles + 1);
 		mIncPath.setText(opts.IncSearchPath);
 		mJSNPath.setText(opts.JSNSearchPath);
-		mCompileAndRunOpts.setText(opts.compileAndRunOpts);
-		mCompileAndDbgOpts.setText(opts.compileAndDbgOpts);
-		mCompileAndDbgEngine.setSelection(opts.compileAndDbgEngine);
 	}
 
 	override int DoApply(GlobalOptions opts, GlobalOptions refopts)
@@ -2384,9 +2424,6 @@ class ToolsProperty2Page : GlobalPropertyPage
 		//changes += changeOption(cast(byte) (mDeleteFiles.getSelection() - 1), opts.deleteFiles, refopts.deleteFiles);
 		changes += changeOption(mIncPath.getText(), opts.IncSearchPath, refopts.IncSearchPath);
 		changes += changeOption(mJSNPath.getText(), opts.JSNSearchPath, refopts.JSNSearchPath);
-		changes += changeOption(mCompileAndRunOpts.getText(), opts.compileAndRunOpts, refopts.compileAndRunOpts);
-		changes += changeOption(mCompileAndDbgOpts.getText(), opts.compileAndDbgOpts, refopts.compileAndDbgOpts);
-		changes += changeOption(mCompileAndDbgEngine.getSelection(), opts.compileAndDbgEngine, refopts.compileAndDbgEngine);
 		return changes;
 	}
 
@@ -2401,9 +2438,6 @@ class ToolsProperty2Page : GlobalPropertyPage
 		CheckBox mShowMemUsage;
 	//ComboBox mDeleteFiles;
 	Text mIncPath;
-	Text mCompileAndRunOpts;
-	Text mCompileAndDbgOpts;
-	ComboBox mCompileAndDbgEngine;
 	MultiLineText mJSNPath;
 }
 
@@ -2711,6 +2745,7 @@ const GUID    g_LinkerOutputPropertyPage = uuid("002a2de9-8bb6-484d-981d-7e4ad40
 const GUID    g_DmdDirPropertyPage       = uuid("002a2de9-8bb6-484d-9820-7e4ad4084715");
 const GUID    g_GdcDirPropertyPage       = uuid("002a2de9-8bb6-484d-9824-7e4ad4084715");
 const GUID    g_LdcDirPropertyPage       = uuid("002a2de9-8bb6-484d-9825-7e4ad4084715");
+const GUID    g_CmdLinePropertyPage      = uuid("002a2de9-8bb6-484d-9828-7e4ad4084715");
 const GUID    g_DubPropertyPage          = uuid("002a2de9-8bb6-484d-9827-7e4ad4084715");
 const GUID    g_ToolsProperty2Page       = uuid("002a2de9-8bb6-484d-9822-7e4ad4084715");
 
diff --git a/visuald/register.d b/visuald/register.d
index 429b4dac..6af1c5a6 100644
--- a/visuald/register.d
+++ b/visuald/register.d
@@ -305,6 +305,7 @@ static const wstring regPathToolsDirsOld   = "\\ToolsOptionsPages\\Projects\\Vis
 static const wstring regPathToolsDirsDmd   = "\\ToolsOptionsPages\\Projects\\Visual D Settings\\DMD Directories"w;
 static const wstring regPathToolsDirsGdc   = "\\ToolsOptionsPages\\Projects\\Visual D Settings\\GDC Directories"w;
 static const wstring regPathToolsDirsLdc   = "\\ToolsOptionsPages\\Projects\\Visual D Settings\\LDC Directories"w;
+static const wstring regPathToolsDirsCmd   = "\\ToolsOptionsPages\\Projects\\Visual D Settings\\Compile/Run/Debug/Dustmite"w;
 static const wstring regPathToolsDub       = "\\ToolsOptionsPages\\Projects\\Visual D Settings\\DUB Options"w;
 static const wstring regPathMagoOptions    = "\\ToolsOptionsPages\\Debugger\\Mago"w;
 static const wstring regMiscFiles          = regPathProjects ~ "\\{A2FE74E1-B743-11d0-AE1A-00A0C90FFFC3}"w;
@@ -687,6 +688,12 @@ version(none){
 		keyToolOptsLdc.Set("Page"w, GUID2wstring(g_LdcDirPropertyPage));
 		keyToolOptsLdc.Set("Sort"w, 20);
 
+		scope RegKey keyToolOptsCmd = new RegKey(keyRoot, registrationRoot ~ regPathToolsDirsCmd);
+		keyToolOptsLdc.Set(null, "Compile/Run/Debug/Dustmite");
+		keyToolOptsLdc.Set("Package"w, packageGuid);
+		keyToolOptsLdc.Set("Page"w, GUID2wstring(g_CmdLinePropertyPage));
+		keyToolOptsLdc.Set("Sort"w, 20);
+
 static if(hasDubSupport)
 {
 		scope RegKey keyToolOptsDub = new RegKey(keyRoot, registrationRoot ~ regPathToolsDub);