diff --git a/client/audiodevs/WASAPI/guids.c b/client/audiodevs/WASAPI/guids.c
index db182ddd..4811effd 100644
--- a/client/audiodevs/WASAPI/guids.c
+++ b/client/audiodevs/WASAPI/guids.c
@@ -20,5 +20,30 @@
 
 #include <initguid.h>
 
-#include <audioclient.h>
-#include <mmdeviceapi.h>
+DEFINE_GUID(CLSID_MMDeviceEnumerator,
+    0xbcde0395, 0xe52f, 0x467c,
+    0x8e, 0x3d, 0xc4, 0x57, 0x92, 0x91, 0x69, 0x2e);
+
+DEFINE_GUID(IID_IMMDeviceEnumerator,
+    0xa95664d2, 0x9614, 0x4f35,
+    0xa7, 0x46, 0xde, 0x8d, 0xb6, 0x36, 0x17, 0xe6);
+
+DEFINE_GUID(IID_IAudioClient,
+    0x1cb9ad4c, 0xdbfa, 0x4c32,
+    0xb1, 0x78, 0xc2, 0xf5, 0x68, 0xa7, 0x03, 0xb2);
+
+DEFINE_GUID(IID_IAudioRenderClient,
+    0xf294acfc, 0x3146, 0x4483,
+    0xa7, 0xbf, 0xad, 0xdc, 0xa7, 0xc2, 0x60, 0xe2);
+
+DEFINE_GUID(IID_IAudioCaptureClient,
+    0xc8adbd64, 0xe71e, 0x48a0,
+    0xa4, 0xde, 0x18, 0x5c, 0x39, 0x5c, 0xd3, 0x17);
+
+DEFINE_GUID(IID_IChannelAudioVolume,
+    0x1c158861, 0xb533, 0x4b30,
+    0xb1, 0xcf, 0xe8, 0x53, 0xe5, 0x1c, 0x59, 0xb8);
+
+DEFINE_GUID(IID_ISimpleAudioVolume,
+    0x87ce5498, 0x68d6, 0x44e5,
+    0x92, 0x15, 0x6d, 0xa4, 0x7e, 0xf8, 0x83, 0xd8);