diff --git a/reactos/dll/win32/syssetup/classinst.c b/reactos/dll/win32/syssetup/classinst.c
index 8e420255667..dc853e9df4e 100644
--- a/reactos/dll/win32/syssetup/classinst.c
+++ b/reactos/dll/win32/syssetup/classinst.c
@@ -11,7 +11,25 @@
 #define NDEBUG
 #include <debug.h>
 
-DWORD WINAPI
+/*
+ * @implemented
+ */
+DWORD
+WINAPI
+HdcClassInstaller(
+    IN DI_FUNCTION InstallFunction,
+    IN HDEVINFO DeviceInfoSet,
+    IN PSP_DEVINFO_DATA DeviceInfoData OPTIONAL)
+{
+    return ERROR_DI_DO_DEFAULT;
+}
+
+
+/*
+ * @unimplemented
+ */
+DWORD
+WINAPI
 KeyboardClassInstaller(
     IN DI_FUNCTION InstallFunction,
     IN HDEVINFO DeviceInfoSet,
@@ -25,7 +43,12 @@ KeyboardClassInstaller(
     }
 }
 
-DWORD WINAPI
+
+/*
+ * @unimplemented
+ */
+DWORD
+WINAPI
 MouseClassInstaller(
     IN DI_FUNCTION InstallFunction,
     IN HDEVINFO DeviceInfoSet,
diff --git a/reactos/dll/win32/syssetup/syssetup.spec b/reactos/dll/win32/syssetup/syssetup.spec
index 7d3b525e88d..4b37986a416 100644
--- a/reactos/dll/win32/syssetup/syssetup.spec
+++ b/reactos/dll/win32/syssetup/syssetup.spec
@@ -20,7 +20,7 @@
 @ stub EisaUpHalCoInstaller
 @ stub EisaUpHalPropPageProvider
 @ stub GenerateName
-@ stub HdcClassInstaller
+@ stdcall HdcClassInstaller(long ptr ptr)
 @ stdcall InitializeSetupActionLog(long)
 @ stdcall InstallLiveCD(ptr)
 @ stdcall InstallReactOS(ptr)
diff --git a/reactos/media/inf/hdc.inf b/reactos/media/inf/hdc.inf
index b747e6da5d9..d72b07fa01a 100644
Binary files a/reactos/media/inf/hdc.inf and b/reactos/media/inf/hdc.inf differ