Made msacm32 really load ACM drivers.

diff --git a/dlls/msacm32/wineacm.h b/dlls/msacm32/wineacm.h
new file mode 100644
index 0000000..117d745
--- /dev/null
+++ b/dlls/msacm32/wineacm.h
@@ -0,0 +1,52 @@
+/* -*- tab-width: 8; c-basic-offset: 4 -*- */
+
+/***********************************************************************
+ * Wine specific - Win32
+ */
+typedef struct _WINE_ACMDRIVERID *PWINE_ACMDRIVERID;
+
+typedef struct _WINE_ACMOBJ
+{
+  PWINE_ACMDRIVERID	pACMDriverID;
+} WINE_ACMOBJ, *PWINE_ACMOBJ;
+
+typedef struct _WINE_ACMDRIVER
+{
+    WINE_ACMOBJ		obj;
+    HDRVR      		hDrvr;
+    DRIVERPROC		pfnDriverProc;
+} WINE_ACMDRIVER, *PWINE_ACMDRIVER;
+
+typedef struct _WINE_ACMSTREAM
+{
+    WINE_ACMOBJ		obj;
+    PWINE_ACMDRIVER	pDrv;
+    ACMDRVSTREAMINSTANCE drvInst;
+} WINE_ACMSTREAM, *PWINE_ACMSTREAM;
+
+typedef struct _WINE_ACMDRIVERID
+{
+    LPSTR               pszDriverAlias;
+    LPSTR               pszFileName;
+    HINSTANCE		hInstModule;          /* NULL if global */
+    DWORD		dwProcessID;	      /* ID of process which installed a local driver */
+    BOOL                bEnabled;
+    PWINE_ACMDRIVER     pACMDriver;           /* NULL if not open; shouldn't this be a list ? */
+    PWINE_ACMDRIVERID   pNextACMDriverID;
+    PWINE_ACMDRIVERID	pPreviousACMDriverID;
+} WINE_ACMDRIVERID;
+
+/* From internal.c */
+extern HANDLE MSACM_hHeap;
+extern PWINE_ACMDRIVERID MSACM_pFirstACMDriverID;
+extern PWINE_ACMDRIVERID MSACM_pLastACMDriverID;
+PWINE_ACMDRIVERID MSACM_RegisterDriver(
+  LPSTR pszDriverAlias, LPSTR pszFileName,
+  HINSTANCE hinstModule);
+void MSACM_RegisterAllDrivers(void);
+PWINE_ACMDRIVERID MSACM_UnregisterDriver(PWINE_ACMDRIVERID p);
+void MSACM_UnregisterAllDrivers(void);
+PWINE_ACMDRIVERID MSACM_GetDriverID(HACMDRIVERID hDriverID);
+PWINE_ACMDRIVER MSACM_GetDriver(HACMDRIVER hDriver);
+PWINE_ACMOBJ MSACM_GetObj(HACMOBJ hObj);
+