diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 872e92e..6b8897e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -19,7 +19,7 @@ jobs:
         with:
           compiler: ${{ matrix.dc }}
 
-      - name: "Windows: install full OpenSSL package, copy & rename import libs, then add to LIB env var"
+      - name: "Windows: install full OpenSSL package, copy & rename import libs, then set KAL_EXT_LIB_WIN64 env var"
         if: runner.os == 'Windows'
         shell: cmd
         run: |
@@ -27,14 +27,7 @@ jobs:
           mkdir extern_deps || exit /b
           copy "%PROGRAMFILES%\OpenSSL-Win64\lib\VC\libssl64MT.lib" extern_deps\libssl.lib || exit /b
           copy "%PROGRAMFILES%\OpenSSL-Win64\lib\VC\libcrypto64MT.lib" extern_deps\libcrypto.lib || exit /b
-          if "%DC%" == "ldc2" (
-            echo LIB=%CD%\extern_deps>> %GITHUB_ENV%
-          ) else (
-            :: https://issues.dlang.org/show_bug.cgi?id=22707
-            echo DFLAGS=-L/LIBPATH:%CD%\extern_deps>> %GITHUB_ENV%
-            :: DFLAGS ignored when building unittests with `--build=unittest-cov` => copy to root
-            xcopy extern_deps . || exit /b
-          )
+          echo KAL_EXT_LIB_WIN64=%CD%\extern_deps>> %GITHUB_ENV%
 
       - name: dub build
         run: dub build
diff --git a/.gitignore b/.gitignore
index a560306..56455d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,9 @@
 .dub
 dub.selections.json
+/extra.selections.json
 
 libsymmetry-imap.*
-symmetry-imap-test-default
+/symmetry-imap-test-unittest*
 example/imap-example
 
 tags
@@ -12,3 +13,6 @@ replrc
 SIL.log
 SIL_user.log
 history.txt
+
+# coverage files
+*.lst
diff --git a/dub.sdl b/dub.sdl
index bd9b198..4d0c2e5 100644
--- a/dub.sdl
+++ b/dub.sdl
@@ -30,5 +30,11 @@ configuration "plugin" {
 	dependency "pegged" version=">=0.0.0" optional=true
 	targetType "dynamicLibrary"
 	targetPath "plugin"
+	targetName "sil-plugin-imap"
 	versions "SIL_Plugin" "SIL" "MoveSanity"
+	lflags "/LIBPATH:$KAL_EXT_LIB_WIN64" platform="windows-x86_64"
+}
+configuration "unittest" {
+	# Windows: set KAL_EXT_LIB_WIN64 env var to dir containing `lib{ssl,crypto}.lib`
+	lflags "/LIBPATH:$KAL_EXT_LIB_WIN64" platform="windows-x86_64"
 }
diff --git a/example/dub.sdl b/example/dub.sdl
index 2dfe8e7..60d028f 100644
--- a/example/dub.sdl
+++ b/example/dub.sdl
@@ -7,3 +7,6 @@ dependency "symmetry-imap" path="../"
 subConfiguration "symmetry-imap" "default"
 targetType "executable"
 dependency "arsd-official:email" version="~>8.5"
+
+# Windows: set KAL_EXT_LIB_WIN64 env var to dir containing `lib{ssl,crypto}.lib`
+lflags "/LIBPATH:$KAL_EXT_LIB_WIN64" platform="windows-x86_64"
diff --git a/test/dub.json b/test/dub.json
index ef778aa..d96cf27 100644
--- a/test/dub.json
+++ b/test/dub.json
@@ -8,5 +8,8 @@
 	},
 	"description": "Functional test application for IMAP.",
 	"license": "MIT",
-	"name": "imap-d-test"
+	"name": "imap-d-test",
+	"lflags-windows-x86_64": [
+		"/LIBPATH:$KAL_EXT_LIB_WIN64"
+	]
 }