diff --git a/reactos/dll/directx/dsound/dsound_private.h b/reactos/dll/directx/dsound/dsound_private.h
index 76f91cf7f04..8772e09b350 100644
--- a/reactos/dll/directx/dsound/dsound_private.h
+++ b/reactos/dll/directx/dsound/dsound_private.h
@@ -19,6 +19,8 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include "dxroslayer/dxros_layer.h"
+
 /* Linux does not support better timing than 10ms */
 #define DS_TIME_RES 10  /* Resolution of multimedia timer */
 #define DS_TIME_DEL 10  /* Delay of multimedia timer callback, and duration of HEL fragment */
diff --git a/reactos/dll/directx/dsound/dxroslayer/dxros_layer.h b/reactos/dll/directx/dsound/dxroslayer/dxros_layer.h
index ebb7582d9e6..3468266eae8 100644
--- a/reactos/dll/directx/dsound/dxroslayer/dxros_layer.h
+++ b/reactos/dll/directx/dsound/dxroslayer/dxros_layer.h
@@ -55,8 +55,8 @@
 /* dxroslayers prototypes */
 void dxGetGuidFromString( char *in_str, GUID *guid );
 
-DWORD dxrosdrv_drv_querydsounddesc(int type, HWAVEOUT hwo_out,HWAVEIN  hwo_in, PDSDRIVERDESC pDESC);
+DWORD dxrosdrv_drv_querydsounddescss(int type, HWAVEOUT hwo_out,HWAVEIN  hwo_in, PDSDRIVERDESC pDESC);
 DWORD dxrosdrv_drv_querydsoundiface(HWAVEIN wDevID, PIDSDRIVER* drv);
 
-DWORD RosWineWineWaveOutMessage(HWAVEOUT  hwo, UINT , DWORD_PTR , DWORD_PTR );
-DWORD RosWineWineWaveInMessage(HWAVEIN  , UINT , DWORD_PTR , DWORD_PTR );
+DWORD RosWineWaveOutMessage(HWAVEOUT  hwo, UINT, DWORD_PTR, DWORD_PTR);
+DWORD RosWineWaveInMessage(HWAVEIN, UINT, DWORD_PTR, DWORD_PTR);
diff --git a/reactos/dll/directx/dsound/dxroslayer/dxroslayer.c b/reactos/dll/directx/dsound/dxroslayer/dxroslayer.c
index 6691bc1e7f8..9c382a46f2e 100644
--- a/reactos/dll/directx/dsound/dxroslayer/dxroslayer.c
+++ b/reactos/dll/directx/dsound/dxroslayer/dxroslayer.c
@@ -85,7 +85,7 @@ DWORD RosWineWaveOutMessage(HWAVEOUT  hwo, UINT uMsg, DWORD_PTR dwParam1, DWORD_
 	            break;
 
                 case DRV_QUERYDSOUNDIFACE:
-                msg = dxrosdrv_drv_querydsoundiface((HWAVEIN)hwo, (PIDSDRIVER)dwParam1);
+                msg = dxrosdrv_drv_querydsoundiface((HWAVEIN)hwo, (PIDSDRIVER*)dwParam1);
 				break;
 	            				
                 default :
@@ -104,7 +104,7 @@ DWORD RosWineWaveInMessage(HWAVEIN  hwo, UINT uMsg, DWORD_PTR dwParam1, DWORD_PT
 	             break;
 
                  case DRV_QUERYDSOUNDIFACE:                 
-                 msg = dxrosdrv_drv_querydsoundiface(hwo, (PIDSDRIVER)dwParam1);                
+                 msg = dxrosdrv_drv_querydsoundiface(hwo, (PIDSDRIVER*)dwParam1);                
                  break; 
 	             
                  default :