diff --git a/.gitignore b/.gitignore
index b0beb32..d95be18 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ npm-debug.log
 .idea
 es
 yarn-error.log
+package-lock.json
diff --git a/src/index.ts b/src/index.ts
index 09ef47e..81f3080 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -83,6 +83,8 @@ export type Browser =
   | 'fxios'
   | 'opera-mini'
   | 'opera'
+  | 'pie'
+  | 'netfront'
   | 'ie'
   | 'bb10'
   | 'android'
@@ -111,6 +113,7 @@ export type OperatingSystem =
   | 'Windows 8.1'
   | 'Windows 10'
   | 'Windows ME'
+  | 'Windows CE'
   | 'Open BSD'
   | 'Sun OS'
   | 'Linux'
@@ -151,6 +154,9 @@ const userAgentRules: UserAgentRule[] = [
   ['opera-mini', /Opera Mini.*Version\/([0-9\.]+)/],
   ['opera', /Opera\/([0-9\.]+)(?:\s|$)/],
   ['opera', /OPR\/([0-9\.]+)(:?\s|$)/],
+  ['pie',/^Microsoft Pocket Internet Explorer\/(\d+\.\d+)$/],
+  ['pie',/^Mozilla\/\d\.\d+\s\(compatible;\s(?:MSP?IE|MSInternet Explorer) (\d+\.\d+);.*Windows CE.*\)$/],
+  ['netfront',/^Mozilla\/\d\.\d+.*NetFront\/(\d.\d)/],
   ['ie', /Trident\/7\.0.*rv\:([0-9\.]+).*\).*Gecko$/],
   ['ie', /MSIE\s([0-9\.]+);.*Trident\/[4-7].0/],
   ['ie', /MSIE\s(7\.0)/],
@@ -183,6 +189,7 @@ const operatingSystemRules: OperatingSystemRule[] = [
   ['Windows 8.1', /(Windows NT 6.3)/],
   ['Windows 10', /(Windows NT 10.0)/],
   ['Windows ME', /Windows ME/],
+  ['Windows CE', /Windows CE|WinCE|Microsoft Pocket Internet Explorer/],
   ['Open BSD', /OpenBSD/],
   ['Sun OS', /SunOS/],
   ['Chrome OS', /CrOS/],
diff --git a/test/logic.js b/test/logic.js
index 8a0ac32..ebd944a 100644
--- a/test/logic.js
+++ b/test/logic.js
@@ -486,6 +486,54 @@ test('detects extended bot info', function(t) {
   t.end();
 });
 
+/** Windows CE Ozone (CE 4.2 P/PC 2003) */
+test('detects PocketPC2003', function(t) {
+  assertAgentString(
+    t,
+    'Mozilla/4.0 (compatible; MSIE 4.01; Windows CE; PPC; 240x320)',
+    {
+      type: 'browser',
+      name: 'pie',
+      version: '4.01.0',
+      os: 'Windows CE',
+    },
+  );
+
+  t.end();
+});
+
+/** Windows CE Pegasus (CE 1.0x) PIE 1.1 */
+test('detects PIE 1.1', function(t) {
+  assertAgentString(
+    t,
+    'Mozilla/1.1 (compatible; MSPIE 1.1; Windows CE)',
+    {
+      type: 'browser',
+      name: 'pie',
+      version: '1.1.0',
+      os: 'Windows CE',
+    },
+  );
+
+  t.end();
+});
+
+
+/** Windows CE Stinger SmartPhone 2003 */
+test('detects NetFront', function(t) {
+  assertAgentString(
+    t,
+    'Mozilla/4.0 (PDA; Windows CE;1.0.0) NetFront/3.0',
+    {
+      type: 'browser',
+      name: 'netfront',
+      version: '3.0.0',
+      os: 'Windows CE',
+    },
+  );
+
+  t.end();
+});
 
 test('detects extended bot info', function(t) {
   assertAgentString(