diff --git a/dlls/advpack/install.c b/dlls/advpack/install.c
index ecf8a18a503..c6bc6c5d4c0 100644
--- a/dlls/advpack/install.c
+++ b/dlls/advpack/install.c
@@ -156,6 +156,39 @@ HRESULT WINAPI LaunchINFSectionExA( HWND hWnd, HINSTANCE hInst, LPSTR cmdline, I
     return E_FAIL;
 }
 
+static HRESULT launch_exe(LPCWSTR cmd, LPCWSTR dir, HANDLE *phEXE)
+{
+    STARTUPINFOW si;
+    PROCESS_INFORMATION pi;
+
+    if (phEXE) *phEXE = NULL;
+
+    ZeroMemory(&pi, sizeof(pi));
+    ZeroMemory(&si, sizeof(si));
+    si.cb = sizeof(si);
+
+    if (!CreateProcessW(NULL, (LPWSTR)cmd, NULL, NULL, FALSE,
+                        CREATE_DEFAULT_ERROR_MODE | CREATE_NEW_PROCESS_GROUP,
+                        NULL, dir, &si, &pi))
+    {
+        return HRESULT_FROM_WIN32(GetLastError());
+    }
+
+    CloseHandle(pi.hThread);
+
+    if (phEXE)
+    {
+        *phEXE = pi.hProcess;
+        return S_ASYNCHRONOUS;
+    }
+
+    /* wait for the child process to finish */
+    WaitForSingleObject(pi.hProcess, INFINITE);
+    CloseHandle(pi.hProcess);
+
+    return S_OK;
+}
+
 /***********************************************************************
  *      RunSetupCommandA  (ADVPACK.@)
  *
@@ -220,23 +253,26 @@ HRESULT WINAPI RunSetupCommandA(HWND hWnd, LPCSTR szCmdName,
  *   HRESULT_FROM_WIN32(GetLastError())   Some other error
  *
  * BUGS
- *   Unimplemented
+ *   INF install unimplemented.
  */
 HRESULT WINAPI RunSetupCommandW(HWND hWnd, LPCWSTR szCmdName,
                                 LPCWSTR szInfSection, LPCWSTR szDir,
                                 LPCWSTR lpszTitle, HANDLE *phEXE,
                                 DWORD dwFlags, LPVOID pvReserved )
 {
-    FIXME("(%p, %s, %s, %s, %s, %p, 0x%08lx, %p): stub\n",
+    TRACE("(%p, %s, %s, %s, %s, %p, 0x%08lx, %p)\n",
            hWnd, debugstr_w(szCmdName), debugstr_w(szInfSection),
            debugstr_w(szDir), debugstr_w(lpszTitle),
            phEXE, dwFlags, pvReserved);
 
+    if (dwFlags)
+        FIXME("Unhandled flags: 0x%08lx\n", dwFlags);
+
     if (!szCmdName || !szDir)
         return E_INVALIDARG;
 
     if (!(dwFlags & RSC_FLAG_INF))
-        *phEXE = NULL;
+        return launch_exe(szCmdName, szDir, phEXE);
 
     return E_UNEXPECTED;
 }
diff --git a/dlls/advpack/tests/install.c b/dlls/advpack/tests/install.c
index 4810868ab52..26f0fa475ad 100644
--- a/dlls/advpack/tests/install.c
+++ b/dlls/advpack/tests/install.c
@@ -56,22 +56,16 @@ static void test_RunSetupCommand()
     /* try to run a non-existent exe */
     hexe = (HANDLE)0xdeadbeef;
     hr = pRunSetupCommand(NULL, "idontexist.exe", "Install", "c:\\windows\\system32", "Title", &hexe, 0, NULL);
-    todo_wine
-    {
-        ok(hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND),
-           "Expected HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND), got %ld\n", hr);
-    }
+    ok(hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND),
+       "Expected HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND), got %ld\n", hr);
     ok(hexe == NULL, "Expcted hexe to be NULL\n");
     ok(!TerminateProcess(hexe, 0), "Expected TerminateProcess to fail\n");
 
     /* try a bad directory */
     hexe = (HANDLE)0xdeadbeef;
-    hr = pRunSetupCommand(NULL, "winve.exe", "Install", "", "Title", &hexe, 0, NULL);
-    todo_wine
-    {
-        ok(hr == HRESULT_FROM_WIN32(ERROR_DIRECTORY),
-           "Expected HRESULT_FROM_WIN32(ERROR_DIRECTORY), got %ld\n", hr);
-    }
+    hr = pRunSetupCommand(NULL, "winver.exe", "Install", "non\\existent\\directory", "Title", &hexe, 0, NULL);
+    ok(hr == HRESULT_FROM_WIN32(ERROR_DIRECTORY),
+       "Expected HRESULT_FROM_WIN32(ERROR_DIRECTORY), got %ld\n", hr);
     ok(hexe == NULL, "Expcted hexe to be NULL\n");
     ok(!TerminateProcess(hexe, 0), "Expected TerminateProcess to fail\n");