diff --git a/lib/index.ts b/lib/index.ts
index 065c338..7b53aad 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -223,7 +223,26 @@ export namespace getProcessTree {
   });
 }
 
+/**
+ * Returns a list of all processes on the system
+ * @param callback The callback to use with the returned set of processes
+ * @param flags The flags for what process data should be included
+ */
+export function getAllProcesses(callback: (processList: IProcessInfo[]) => void, flags?: ProcessDataFlag): void {
+  if (process.platform !== 'win32') {
+    throw new Error('getAllProcesses is only implemented on Windows');
+  }
+  getRawProcessList(callback, flags);
+}
+
+export namespace getAllProcesses {
+  // tslint:disable-next-line:variable-name
+  export const __promisify__ = (flags?: ProcessDataFlag): Promise<IProcessInfo[]> => new Promise((resolve, reject) => {
+    getAllProcesses((processList) => resolve(processList), flags);
+  });
+}
+
 // Since symbol properties can't be declared via namespace merging, we just define __promisify__ that way and
 // and manually set the "modern" promisify symbol: https://github.com/microsoft/TypeScript/issues/36813
-[getProcessTree, getProcessList, getProcessCpuUsage].forEach(func =>
+[getProcessTree, getProcessList, getProcessCpuUsage, getAllProcesses].forEach(func =>
   Object.defineProperty(func, promisify.custom, { enumerable: false, value: func.__promisify__ }));
diff --git a/lib/promises.ts b/lib/promises.ts
index 93e7093..c60cf3b 100644
--- a/lib/promises.ts
+++ b/lib/promises.ts
@@ -12,3 +12,4 @@ export { ProcessDataFlag } from './index';
 export const getProcessTree = promisify(wpc.getProcessTree);
 export const getProcessList = promisify(wpc.getProcessList);
 export const getProcessCpuUsage = promisify(wpc.getProcessCpuUsage);
+export const getAllProcesses = promisify(wpc.getAllProcesses);
diff --git a/lib/test.ts b/lib/test.ts
index f502765..dddf6a8 100644
--- a/lib/test.ts
+++ b/lib/test.ts
@@ -27,6 +27,39 @@ function pollUntil(makePromise: () => Promise<boolean>, cb: () => void, interval
 if (isWindows) {
   const native = require('../build/Release/windows_process_tree.node');
 
+  describe('getAllProcesses', () => {
+    it('should return a list containing this process via native API', (done) => {
+      native.getProcessList((list) => {
+        assert.notStrictEqual(list?.find(p => p.pid === process.pid), undefined);
+        done();
+      }, 0);
+    });
+
+    it('should work via API', (done) => {
+      const { getAllProcesses } = require('./index');
+      getAllProcesses((list) => {
+        assert.ok(Array.isArray(list));
+        assert.notStrictEqual(list.find(p => p.pid === process.pid), undefined);
+        done();
+      });
+    });
+
+    it('should work promisified', async () => {
+      const list = await promises.getAllProcesses();
+      assert.ok(Array.isArray(list));
+      assert.notStrictEqual(list.find(p => p.pid === process.pid), undefined);
+    });
+
+    it('should return memory information only when the flag is set', async () => {
+      const list = await promises.getAllProcesses(ProcessDataFlag.Memory);
+      assert.ok(list.some(p => typeof p.memory === 'number'));
+    });
+
+    it('should return command line information only when the flag is set', async () => {
+      const list = await promises.getAllProcesses(ProcessDataFlag.CommandLine);
+      assert.ok(list.every(p => typeof p.commandLine === 'string'));
+    });
+  });
   describe('getRawProcessList', () => {
     it('should throw if arguments are not provided', (done) => {
       assert.throws(() => native.getProcessList());
diff --git a/typings/windows-process-tree.d.ts b/typings/windows-process-tree.d.ts
index 996868e..70e242b 100644
--- a/typings/windows-process-tree.d.ts
+++ b/typings/windows-process-tree.d.ts
@@ -72,4 +72,15 @@ declare module '@vscode/windows-process-tree' {
   namespace getProcessCpuUsage {
     function __promisify__(processList: IProcessInfo[]): Promise<IProcessCpuInfo[]>;
   }
+
+  /**
+   * Returns a list of all processes on the system.
+   * @param callback - The callback to use with the returned list of processes.
+   * @param flags - The flags for what process data should be included.
+   */
+  export function getAllProcesses(callback: (processList: IProcessInfo[]) => void, flags?: ProcessDataFlag): void;
+
+  namespace getAllProcesses {
+    function __promisify__(flags?: ProcessDataFlag): Promise<IProcessInfo[]>;
+  }
 }
diff --git a/typings/windows-process-tree/promises.d.ts b/typings/windows-process-tree/promises.d.ts
index 25d8422..ce1cbb5 100644
--- a/typings/windows-process-tree/promises.d.ts
+++ b/typings/windows-process-tree/promises.d.ts
@@ -37,4 +37,10 @@ declare module '@vscode/windows-process-tree/promises' {
    * @param processList - The list of processes.
    */
   export function getProcessCpuUsage(processList: IProcessInfo[]): Promise<IProcessCpuInfo[]>;
+
+   /**
+   * Returns a list of all processes on the system.
+   * @param flags - The flags for what process data should be included.
+   */
+  export function getAllProcesses(flags?: ProcessDataFlag): Promise<IProcessInfo[]>;
 }