diff --git a/tools/winapi_check/modules.dat b/tools/winapi_check/modules.dat
index 7f3abad1a22..b84394d6724 100644
--- a/tools/winapi_check/modules.dat
+++ b/tools/winapi_check/modules.dat
@@ -136,6 +136,14 @@ msdos
 relay32
 windows
 
+% dlls/kernel/win87em.spec
+
+dlls/kernel
+
+% dlls/kernel/windebug.spec
+
+dlls/kernel
+
 % dlls/lzexpand/lz32.spec
 
 dlls/lzexpand
@@ -152,9 +160,9 @@ dlls/mpr
 
 dlls/msacm
 
-% dlls/msacm32/msacm32.spec
+% dlls/msacm/msacm32.spec
 
-dlls/msacm32
+dlls/msacm
 
 % dlls/msnet32/msnet32.spec
 
@@ -263,6 +271,14 @@ dlls/rasapi32
 
 dlls/richedit
 
+% dlls/rpcrt4/rpcrt4.spec
+
+dlls/rpcrt4
+
+% dlls/serialui/serialui.spec
+
+dlls/serialui
+
 % dlls/setupapi/setupapi.spec
 
 dlls/setupapi
@@ -376,10 +392,6 @@ dlls/win32s
 memory
 scheduler
 
-% dlls/win87em/win87em.spec
-
-dlls/win87em
-
 % dlls/winaspi/winaspi.spec
 
 dlls/winaspi
@@ -388,10 +400,6 @@ dlls/winaspi
 
 dlls/winaspi
 
-% dlls/windebug/windebug.spec
-
-dlls/windebug
-
 % dlls/wineps/wineps.spec
 
 dlls/wineps
diff --git a/tools/winapi_check/win16/setupx.api b/tools/winapi_check/win16/setupx.api
index 98c465c6f84..d628f7214c7 100644
--- a/tools/winapi_check/win16/setupx.api
+++ b/tools/winapi_check/win16/setupx.api
@@ -18,4 +18,7 @@ LPSTR
 
 %word # --forbidden
 
+INT16
+HINSTANCE16
 HKEY
+HWND16
diff --git a/tools/winapi_check/win32/rasapi32.api b/tools/winapi_check/win32/rasapi32.api
index c6d2c089b09..5af6076322e 100644
--- a/tools/winapi_check/win32/rasapi32.api
+++ b/tools/winapi_check/win32/rasapi32.api
@@ -1,6 +1,7 @@
 %long
 
 DWORD
+HRASCONN
 
 %ptr
 
diff --git a/tools/winapi_check/win32/rpcrt4.api b/tools/winapi_check/win32/rpcrt4.api
new file mode 100644
index 00000000000..4f104a416d4
--- /dev/null
+++ b/tools/winapi_check/win32/rpcrt4.api
@@ -0,0 +1,7 @@
+%long
+
+RPC_STATUS
+
+%ptr
+
+UUID *
diff --git a/tools/winapi_check/win32/serialui.api b/tools/winapi_check/win32/serialui.api
new file mode 100644
index 00000000000..ea5bf09834f
--- /dev/null
+++ b/tools/winapi_check/win32/serialui.api
@@ -0,0 +1,17 @@
+%long
+
+BOOL
+DWORD
+HWND
+LPARAM
+
+%ptr
+
+LPCOMMCONFIG
+LPDWORD
+LPDEVICE_INFO
+LPFNADDPROPSHEETPAGE
+
+%str
+
+LPCSTR
diff --git a/tools/winapi_check/win32/ws2_32.api b/tools/winapi_check/win32/ws2_32.api
index e2fb857125c..24c28ea1e3d 100644
--- a/tools/winapi_check/win32/ws2_32.api
+++ b/tools/winapi_check/win32/ws2_32.api
@@ -22,7 +22,11 @@ SOCKET16
 
 FARPROC
 INT *
+LPDWORD
+LPVOID
 LPWSADATA
+LPWSAOVERLAPPED
+LPWSAOVERLAPPED_COMPLETION_ROUTINE
 LPWSANETWORKEVENTS
 LPWSAPROTOCOL_INFOA
 ULONG *