diff --git a/reactos/dll/win32/authz/authz.c b/reactos/dll/win32/authz/authz.c
index 815f2b3d1c1..d0811bf316a 100644
--- a/reactos/dll/win32/authz/authz.c
+++ b/reactos/dll/win32/authz/authz.c
@@ -170,7 +170,7 @@ AuthzInitializeContextFromToken(IN DWORD Flags,
  */
 AUTHZAPI
 BOOL
-WINAPI
+WINAPIV
 AuthzInitializeObjectAccessAuditEvent(IN DWORD Flags,
                                       IN AUTHZ_AUDIT_EVENT_TYPE_HANDLE hAuditEventType,
                                       IN PWSTR szOperationType,
@@ -190,7 +190,7 @@ AuthzInitializeObjectAccessAuditEvent(IN DWORD Flags,
  */
 AUTHZAPI
 BOOL
-WINAPI
+WINAPIV
 AuthzInitializeObjectAccessAuditEvent2(IN DWORD Flags,
                                        IN AUTHZ_AUDIT_EVENT_TYPE_HANDLE hAuditEventType,
                                        IN PWSTR szOperationType,
@@ -260,7 +260,7 @@ AuthzRegisterSecurityEventSource(IN DWORD dwFlags,
  */
 AUTHZAPI
 BOOL
-WINAPI
+WINAPIV
 AuthzReportSecurityEvent(IN DWORD dwFlags,
                          IN AUTHZ_SECURITY_EVENT_PROVIDER_HANDLE hEventProvider,
                          IN DWORD dwAuditId,
diff --git a/reactos/dll/win32/authz/authz.spec b/reactos/dll/win32/authz/authz.spec
index d39efcf1247..87211f5f919 100644
--- a/reactos/dll/win32/authz/authz.spec
+++ b/reactos/dll/win32/authz/authz.spec
@@ -11,13 +11,13 @@
 @ stdcall AuthzInitializeContextFromAuthzContext(long ptr ptr long long ptr ptr)
 @ stdcall AuthzInitializeContextFromSid(long ptr ptr ptr long long ptr ptr)
 @ stdcall AuthzInitializeContextFromToken(long ptr ptr ptr long long ptr ptr)
-@ stdcall AuthzInitializeObjectAccessAuditEvent(long ptr wstr wstr wstr wstr ptr long)
-@ stdcall AuthzInitializeObjectAccessAuditEvent2(long ptr wstr wstr wstr wstr wstr ptr long)
+@ cdecl AuthzInitializeObjectAccessAuditEvent(long ptr wstr wstr wstr wstr ptr long)
+@ cdecl AuthzInitializeObjectAccessAuditEvent2(long ptr wstr wstr wstr wstr wstr ptr long)
 @ stdcall AuthzInitializeResourceManager(long ptr ptr ptr wstr ptr)
 @ stdcall AuthzInstallSecurityEventSource(long ptr)
 @ stdcall AuthzOpenObjectAudit(long ptr ptr ptr ptr ptr long ptr)
 @ stdcall AuthzRegisterSecurityEventSource(long ptr ptr)
-@ stdcall AuthzReportSecurityEvent(long ptr long ptr long) authz.AuthzReportSecurityEvent
+@ cdecl AuthzReportSecurityEvent(long ptr long ptr long) authz.AuthzReportSecurityEvent
 @ stdcall AuthzReportSecurityEventFromParams(long ptr long ptr ptr)
 @ stdcall AuthzUninstallSecurityEventSource(long wstr)
 @ stdcall AuthzUnregisterSecurityEventSource(long ptr)
diff --git a/reactos/include/psdk/authz.h b/reactos/include/psdk/authz.h
index da2cf6f119a..39caf49bed9 100644
--- a/reactos/include/psdk/authz.h
+++ b/reactos/include/psdk/authz.h
@@ -222,7 +222,7 @@ AuthzInitializeContextFromToken(IN DWORD Flags,
 
 AUTHZAPI
 BOOL
-WINAPI
+WINAPIV
 AuthzInitializeObjectAccessAuditEvent(IN DWORD Flags,
                                       IN AUTHZ_AUDIT_EVENT_TYPE_HANDLE hAuditEventType,
                                       IN PWSTR szOperationType,
@@ -234,7 +234,7 @@ AuthzInitializeObjectAccessAuditEvent(IN DWORD Flags,
 
 AUTHZAPI
 BOOL
-WINAPI
+WINAPIV
 AuthzInitializeObjectAccessAuditEvent2(IN DWORD Flags,
                                        IN AUTHZ_AUDIT_EVENT_TYPE_HANDLE hAuditEventType,
                                        IN PWSTR szOperationType,
@@ -282,7 +282,7 @@ AuthzRegisterSecurityEventSource(IN DWORD dwFlags,
 
 AUTHZAPI
 BOOL
-WINAPI
+WINAPIV
 AuthzReportSecurityEvent(IN DWORD dwFlags,
                          IN AUTHZ_SECURITY_EVENT_PROVIDER_HANDLE hEventProvider,
                          IN DWORD dwAuditId,