diff --git a/drivers/video/miniport/vbe/vbemp.c b/drivers/video/miniport/vbe/vbemp.c
index 2107e5ff70e..b8ee6e18eac 100644
--- a/drivers/video/miniport/vbe/vbemp.c
+++ b/drivers/video/miniport/vbe/vbemp.c
@@ -36,7 +36,7 @@
 
 /* PUBLIC AND PRIVATE FUNCTIONS ***********************************************/
 
-VP_STATUS NTAPI
+ULONG NTAPI
 DriverEntry(IN PVOID Context1, IN PVOID Context2)
 {
    VIDEO_HW_INITIALIZATION_DATA InitData;
diff --git a/drivers/video/miniport/vga/vgamp.c b/drivers/video/miniport/vga/vgamp.c
index 928d7e8b4d5..173525879f8 100644
--- a/drivers/video/miniport/vga/vgamp.c
+++ b/drivers/video/miniport/vga/vgamp.c
@@ -21,9 +21,9 @@
 //    IN  PVOID  Context1  Context parameter to pass to VidPortInitialize
 //    IN  PVOID  Context2  Context parameter to pass to VidPortInitialize
 //  RETURNS:
-//    VP_STATUS
+//    ULONG
 
-VP_STATUS NTAPI
+ULONG NTAPI
 DriverEntry(IN PVOID Context1,
             IN PVOID Context2)
 {
diff --git a/drivers/video/miniport/vmx_svga/vmx_svga.c b/drivers/video/miniport/vmx_svga/vmx_svga.c
index 3c981c59be1..9ed88c9a8ff 100644
--- a/drivers/video/miniport/vmx_svga/vmx_svga.c
+++ b/drivers/video/miniport/vmx_svga/vmx_svga.c
@@ -241,7 +241,7 @@ VmxGetVideoChildDescriptor(IN PVOID HwDeviceExtension,
     return NO_ERROR;
 }
 
-VP_STATUS
+ULONG
 NTAPI
 DriverEntry(IN PVOID Context1,
             IN PVOID Context2)
diff --git a/drivers/video/miniport/xboxvmp/xboxvmp.c b/drivers/video/miniport/xboxvmp/xboxvmp.c
index 7763ccb3a07..6841930d84f 100644
--- a/drivers/video/miniport/xboxvmp/xboxvmp.c
+++ b/drivers/video/miniport/xboxvmp/xboxvmp.c
@@ -35,7 +35,7 @@
 
 /* PUBLIC AND PRIVATE FUNCTIONS ***********************************************/
 
-VP_STATUS NTAPI
+ULONG NTAPI
 DriverEntry(IN PVOID Context1, IN PVOID Context2)
 {
   VIDEO_HW_INITIALIZATION_DATA InitData;
diff --git a/drivers/video/videoprt/videoprt.c b/drivers/video/videoprt/videoprt.c
index 33c6fedc7f8..8bf88f2a67b 100644
--- a/drivers/video/videoprt/videoprt.c
+++ b/drivers/video/videoprt/videoprt.c
@@ -31,10 +31,10 @@ ULONG VideoPortDeviceNumber = 0;
 
 /* PRIVATE FUNCTIONS **********************************************************/
 
-NTSTATUS NTAPI
+ULONG NTAPI
 DriverEntry(
-   IN PDRIVER_OBJECT DriverObject,
-   IN PUNICODE_STRING RegistryPath)
+   IN PVOID Context1,
+   IN PVOID Context2)
 {
    return STATUS_SUCCESS;
 }
@@ -1357,7 +1357,7 @@ VP_STATUS NTAPI
 VideoPortRegisterBugcheckCallback(
    IN PVOID HwDeviceExtension,
    IN ULONG BugcheckCode,
-   IN PVOID Callback,
+   IN PVIDEO_BUGCHECK_CALLBACK Callback,
    IN ULONG BugcheckDataSize)
 {
     UNIMPLEMENTED;