diff --git a/lib/winapi/processthreadsapi.h b/lib/winapi/processthreadsapi.h
index 51b646cdd..c76b0d6fb 100644
--- a/lib/winapi/processthreadsapi.h
+++ b/lib/winapi/processthreadsapi.h
@@ -23,6 +23,8 @@ DWORD GetThreadId (HANDLE Thread);
 BOOL SwitchToThread (VOID);
 
 BOOL SetThreadPriority (HANDLE hThread, int nPriority);
+DWORD SuspendThread (HANDLE hThread);
+DWORD ResumeThread (HANDLE hThread);
 
 DWORD TlsAlloc (void);
 BOOL TlsFree (DWORD dwTlsIndex);
diff --git a/lib/winapi/thread.c b/lib/winapi/thread.c
index 378881444..9a10d519f 100644
--- a/lib/winapi/thread.c
+++ b/lib/winapi/thread.c
@@ -172,3 +172,31 @@ BOOL SetThreadPriority (HANDLE hThread, int nPriority)
     ObfDereferenceObject(thread);
     return TRUE;
 }
+
+DWORD SuspendThread (HANDLE hThread)
+{
+    ULONG PreviousSuspendCount;
+    NTSTATUS status;
+
+    status = NtSuspendThread(hThread, &PreviousSuspendCount);
+    if (!NT_SUCCESS(status)) {
+        SetLastError(RtlNtStatusToDosError(status));
+        return -1;
+    }
+
+    return PreviousSuspendCount;
+}
+
+DWORD ResumeThread (HANDLE hThread)
+{
+    ULONG PreviousResumeCount;
+    NTSTATUS status;
+
+    status = NtResumeThread(hThread, &PreviousResumeCount);
+    if (!NT_SUCCESS(status)) {
+        SetLastError(RtlNtStatusToDosError(status));
+        return -1;
+    }
+
+    return PreviousResumeCount;
+}