diff --git a/stdlib/_msi.pyi b/stdlib/_msi.pyi
index edceed51bf9d..e5b408811ee7 100644
--- a/stdlib/_msi.pyi
+++ b/stdlib/_msi.pyi
@@ -52,7 +52,7 @@ if sys.platform == "win32":
         __init__: None  # type: ignore[assignment]
 
     def UuidCreate() -> str: ...
-    def FCICreate(cabname: str, files: list[str], /) -> None: ...
+    def FCICreate(cabname: str, files: list[tuple[str, str]], /) -> None: ...
     def OpenDatabase(path: str, persist: int, /) -> _Database: ...
     def CreateRecord(count: int, /) -> _Record: ...
 
diff --git a/stdlib/msilib/__init__.pyi b/stdlib/msilib/__init__.pyi
index 622f585f5bee..259370f222c2 100644
--- a/stdlib/msilib/__init__.pyi
+++ b/stdlib/msilib/__init__.pyi
@@ -1,5 +1,5 @@
 import sys
-from collections.abc import Container, Iterable, Sequence
+from collections.abc import Container, Iterable
 from types import ModuleType
 from typing import Any, Final
 
@@ -7,6 +7,8 @@ if sys.platform == "win32":
     from _msi import *
     from _msi import _Database
 
+    from .sequence import _SequenceType
+
     AMD64: Final[bool]
     Win64: Final[bool]
 
@@ -33,10 +35,7 @@ if sys.platform == "win32":
     class _Unspecified: ...
 
     def change_sequence(
-        seq: Sequence[tuple[str, str | None, int]],
-        action: str,
-        seqno: int | type[_Unspecified] = ...,
-        cond: str | type[_Unspecified] = ...,
+        seq: _SequenceType, action: str, seqno: int | type[_Unspecified] = ..., cond: str | type[_Unspecified] = ...
     ) -> None: ...
     def add_data(db: _Database, table: str, values: Iterable[tuple[Any, ...]]) -> None: ...
     def add_stream(db: _Database, name: str, path: str) -> None: ...
@@ -54,7 +53,7 @@ if sys.platform == "win32":
         index: int
         def __init__(self, name: str) -> None: ...
         def gen_id(self, file: str) -> str: ...
-        def append(self, full: str, file: str, logical: str) -> tuple[int, str]: ...
+        def append(self, full: str, file: str, logical: str | None) -> tuple[int, str] | None: ...
         def commit(self, db: _Database) -> None: ...
 
     _directories: set[str]
@@ -62,7 +61,7 @@ if sys.platform == "win32":
     class Directory:
         db: _Database
         cab: CAB
-        basedir: str
+        basedir: Directory | None
         physical: str
         logical: str
         component: str | None
@@ -75,7 +74,7 @@ if sys.platform == "win32":
             self,
             db: _Database,
             cab: CAB,
-            basedir: str,
+            basedir: Directory | None,
             physical: str,
             _logical: str,
             default: str,
@@ -90,7 +89,9 @@ if sys.platform == "win32":
             uuid: str | None = None,
         ) -> None: ...
         def make_short(self, file: str) -> str: ...
-        def add_file(self, file: str, src: str | None = None, version: str | None = None, language: str | None = None) -> str: ...
+        def add_file(
+            self, file: str, src: str | None = None, version: str | None = None, language: str | None = None
+        ) -> str | None: ...
         def glob(self, pattern: str, exclude: Container[str] | None = None) -> list[str]: ...
         def remove_pyc(self) -> None: ...
 
@@ -146,8 +147,8 @@ if sys.platform == "win32":
             attr: int,
             title: str,
             first: str,
-            default: str,
-            cancel: str,
+            default: str | None,
+            cancel: str | None,
         ) -> None: ...
         def control(
             self,