diff --git a/include/msi.h b/include/msi.h
index 17b3db6f703..28b9c51656f 100644
--- a/include/msi.h
+++ b/include/msi.h
@@ -528,6 +528,14 @@ INSTALLSTATE WINAPI MsiLocateComponentA(LPCSTR, LPSTR, DWORD *);
 INSTALLSTATE WINAPI MsiLocateComponentW(LPCWSTR, LPWSTR, DWORD *);
 #define  MsiLocateComponent WINELIB_NAME_AW(MsiLocateComponent)
 
+UINT WINAPI MsiSourceListAddSourceA(LPCSTR, LPCSTR, DWORD, LPCSTR);
+UINT WINAPI MsiSourceListAddSourceW(LPCWSTR, LPCWSTR, DWORD, LPCWSTR);
+#define     MsiSourceListAddSource WINELIB_NAME_AW(MsiSourceListAddSource)
+
+UINT WINAPI MsiSourceListClearAllA(LPCSTR, LPCSTR, DWORD);
+UINT WINAPI MsiSourceListClearAllW(LPCWSTR, LPCWSTR, DWORD);
+#define     MsiSourceListClearAll WINELIB_NAME_AW(MsiSourceListClearAll)
+
 UINT WINAPI MsiSourceListGetInfoA(LPCSTR, LPCSTR, MSIINSTALLCONTEXT, DWORD, LPCSTR, LPSTR, LPDWORD);
 UINT WINAPI MsiSourceListGetInfoW(LPCWSTR, LPCWSTR, MSIINSTALLCONTEXT, DWORD, LPCWSTR, LPWSTR, LPDWORD);
 #define     MsiSourceListGetInfo WINELIB_NAME_AW(MsiSourceListGetInfo)
diff --git a/include/msiquery.h b/include/msiquery.h
index 8ea24b6cece..231f9becefe 100644
--- a/include/msiquery.h
+++ b/include/msiquery.h
@@ -290,4 +290,14 @@ BOOL WINAPI MsiSetMode(MSIHANDLE, MSIRUNMODE, BOOL);
 
 UINT WINAPI MsiViewModify(MSIHANDLE, MSIMODIFY, MSIHANDLE);
 
+UINT WINAPI MsiGetFeatureCostA(MSIHANDLE, LPCSTR, MSICOSTTREE, INSTALLSTATE, INT*);
+UINT WINAPI MsiGetFeatureCostW(MSIHANDLE, LPCWSTR, MSICOSTTREE, INSTALLSTATE, INT*);
+#define     MsiGetFeatureCost WINELIB_NAME_AW(MsiGetFeatureCost)
+
+LANGID WINAPI MsiGetLanguage(MSIHANDLE);
+
+UINT WINAPI MsiSetInstallLevel(MSIHANDLE, int);
+
+MSIHANDLE WINAPI MsiGetLastErrorRecord();
+
 #endif /* __WINE_MSIQUERY_H */