diff --git a/xtoskrnl/xtoskrnl.spec b/xtoskrnl/xtoskrnl.spec
index 1737603..d977863 100644
--- a/xtoskrnl/xtoskrnl.spec
+++ b/xtoskrnl/xtoskrnl.spec
@@ -1,2 +1,5 @@
 @ stdcall HlIoPortInByte(ptr)
 @ stdcall HlIoPortOutByte(ptr long)
+@ stdcall RtlCopyMemory(ptr ptr long)
+@ stdcall RtlSameMemory(ptr ptr long)
+@ stdcall RtlWideStringCompare(wstr wstr long)
\ No newline at end of file