diff --git a/reactos/lib/winmm/midimap/midimap.drv.spec b/reactos/lib/winmm/midimap/midimap.drv.spec
new file mode 100644
index 00000000000..e83446b9187
--- /dev/null
+++ b/reactos/lib/winmm/midimap/midimap.drv.spec
@@ -0,0 +1,2 @@
+@ stdcall DriverProc(long long long long long) MIDIMAP_DriverProc
+@ stdcall modMessage(long long long long long) MIDIMAP_modMessage
diff --git a/reactos/lib/winmm/midimap/winehq2ros.patch b/reactos/lib/winmm/midimap/winehq2ros.patch
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/reactos/lib/winmm/wavemap/msacm.drv.spec b/reactos/lib/winmm/wavemap/msacm.drv.spec
new file mode 100644
index 00000000000..f9bead0b053
--- /dev/null
+++ b/reactos/lib/winmm/wavemap/msacm.drv.spec
@@ -0,0 +1,3 @@
+@ stdcall DriverProc(long long long long long) WAVEMAP_DriverProc
+@ stdcall widMessage(long long long long long) WAVEMAP_widMessage
+@ stdcall wodMessage(long long long long long) WAVEMAP_wodMessage
diff --git a/reactos/lib/winmm/wavemap/winehq2ros.patch b/reactos/lib/winmm/wavemap/winehq2ros.patch
new file mode 100644
index 00000000000..e69de29bb2d