diff --git a/client/src/main/java/org/glassfish/tyrus/client/SslContextConfigurator.java b/client/src/main/java/org/glassfish/tyrus/client/SslContextConfigurator.java
index bd68ca99..a85312b1 100644
--- a/client/src/main/java/org/glassfish/tyrus/client/SslContextConfigurator.java
+++ b/client/src/main/java/org/glassfish/tyrus/client/SslContextConfigurator.java
@@ -578,6 +578,17 @@ public SSLContext createSSLContext() {
             TrustManagerFactory trustManagerFactory = null;
             KeyManagerFactory keyManagerFactory = null;
 
+            if ("SunMSCAPI".equals(System.getProperty(TRUST_STORE_PROVIDER))) {
+                try {
+                    KeyStore keyStore = KeyStore.getInstance(System.getProperty(TRUST_STORE_TYPE), "SunMSCAPI");
+                    keyStore.load(null, null);
+                    trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+                    trustManagerFactory.init(keyStore);
+                } catch (Throwable e) {
+                    throw new RuntimeException(e);
+                }
+            }
+
             if (keyStoreBytes != null || keyStoreFile != null) {
                 try {
                     KeyStore keyStore;
diff --git a/containers/jdk-client/src/main/java/org/glassfish/tyrus/container/jdk/client/SslContextConfigurator.java b/containers/jdk-client/src/main/java/org/glassfish/tyrus/container/jdk/client/SslContextConfigurator.java
index b67c6fa5..e1ca3b0d 100644
--- a/containers/jdk-client/src/main/java/org/glassfish/tyrus/container/jdk/client/SslContextConfigurator.java
+++ b/containers/jdk-client/src/main/java/org/glassfish/tyrus/container/jdk/client/SslContextConfigurator.java
@@ -524,6 +524,17 @@ public SSLContext createSSLContext() {
 
         try {
             TrustManagerFactory trustManagerFactory = null;
+            if ("SunMSCAPI".equals(System.getProperty(TRUST_STORE_PROVIDER))) {
+                try {
+                    KeyStore keyStore = KeyStore.getInstance(System.getProperty(TRUST_STORE_TYPE), "SunMSCAPI");
+                    keyStore.load(null, null);
+                    trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+                    trustManagerFactory.init(keyStore);
+                } catch (Throwable e) {
+                    throw new RuntimeException(e);
+                }
+            }
+
             KeyManagerFactory keyManagerFactory = null;
 
             if (keyStoreBytes != null || keyStoreFile != null) {