diff --git a/tests/testthat/test_cwb_encode.R b/tests/testthat/test_cwb_encode.R
index 27ff910..5258163 100644
--- a/tests/testthat/test_cwb_encode.R
+++ b/tests/testthat/test_cwb_encode.R
@@ -33,33 +33,45 @@ test_that(
     )
     
     for (p_attr in c("word", "pos", "lemma")){
-      cwb_makeall(corpus = "BT", p_attribute = p_attr, registry = get_tmp_registry())
-      cwb_huffcode(corpus = "BT", p_attribute = p_attr, registry = get_tmp_registry())
-      cwb_compress_rdx(corpus = "BT", p_attribute = p_attr, registry = get_tmp_registry())
+      cwb_makeall(corpus = "BT", p_attribute = p_attr, registry = regdir)
+      if (.Platform$OS.type != "windows"){
+        cwb_huffcode(corpus = "BT", p_attribute = p_attr, registry = regdir)
+        cwb_compress_rdx(corpus = "BT", p_attribute = p_attr, registry = regdir)
+      }
     }
     
-    expect_true(cl_load_corpus(corpus = "BT", registry = get_tmp_registry()))
+    expect_true(cl_load_corpus(corpus = "BT", registry = regdir))
     expect_true(tolower("BT") %in% cl_list_corpora())
     
     # In the CQP context, corpus IDs are uppered - here we knowingly provide
     # a lowercase ID that is uppered internally #64
-    expect_true(cqp_load_corpus(corpus = "bt", registry = get_tmp_registry()))
+    expect_true(cqp_load_corpus(corpus = "bt", registry = regdir))
     expect_true("BT" %in% cqp_list_corpora())
     
     for (p_attr in c("word", "pos", "lemma")){
       expect_equal(
-        cl_attribute_size(corpus = "BT", attribute = p_attr, attribute_type = "p", registry = get_tmp_registry()),
+        cl_attribute_size(
+          corpus = "BT",
+          attribute = p_attr,
+          attribute_type = "p",
+          registry = regdir
+        ),
         8402
       )
     }
     
-    n <- cl_attribute_size(corpus = "BT", attribute = "word", attribute_type = "p", registry = get_tmp_registry())
+    n <- cl_attribute_size(
+      corpus = "BT",
+      attribute = "word",
+      attribute_type = "p",
+      registry = regdir
+    )
     ids <- cl_cpos2id(
-      "BT", p_attribute = "word", registry = get_tmp_registry(),
+      "BT", p_attribute = "word", registry = regdir,
       cpos = 0L:(n-1L)
     )
     
-    words <- cl_id2str("BT", p_attribute = "word", registry = get_tmp_registry(), id = ids)
+    words <- cl_id2str("BT", p_attribute = "word", registry = regdir, id = ids)
     expect_equal(table(words == "Liebe")[["TRUE"]], 6)
     expect_equal(table(words == "SPD")[["TRUE"]], 31)