diff --git a/build.bat b/build.bat
index acbfc4e16..057fb0209 100644
--- a/build.bat
+++ b/build.bat
@@ -190,8 +190,6 @@ COPY /Y /V "NCalc.dll"           "temp_zip\"
 COPY /Y /V "..\..\DLLs\Interop.QuartzTypeLib.dll"           "temp_zip\"
 COPY /Y /V "System.Net.Http.Extensions.dll"           "temp_zip\"
 COPY /Y /V "Newtonsoft.Json.dll"           "temp_zip\"
-COPY /Y /V "Xceed.Document.NET.dll"  "temp_zip\"
-COPY /Y /V "Xceed.Words.NET.dll"  "temp_zip\"
 COPY /Y /V "System.Net.Http.Primitives.dll"           "temp_zip\"
 COPY /Y /V "SubtitleEdit.exe"          "temp_zip\"
 COPY /Y /V "Languages\*.xml"           "temp_zip\Languages\"
diff --git a/build_beta.bat b/build_beta.bat
index 3cd3b6c73..ceed5eac1 100644
--- a/build_beta.bat
+++ b/build_beta.bat
@@ -178,8 +178,6 @@ COPY /Y /V "NCalc.dll"           "temp_zip\"
 COPY /Y /V "..\..\DLLs\Interop.QuartzTypeLib.dll"           "temp_zip\"
 COPY /Y /V "System.Net.Http.Extensions.dll"           "temp_zip\"
 COPY /Y /V "Newtonsoft.Json.dll"           "temp_zip\"
-COPY /Y /V "Xceed.Document.NET.dll"  "temp_zip\"
-COPY /Y /V "Xceed.Words.NET.dll"  "temp_zip\"
 COPY /Y /V "System.Net.Http.Primitives.dll"           "temp_zip\"
 COPY /Y /V "SubtitleEdit.exe"          "temp_zip\"
 COPY /Y /V "Languages\*.xml"           "temp_zip\Languages\"
diff --git a/installer/Subtitle_Edit_installer.iss b/installer/Subtitle_Edit_installer.iss
index b032ce08b..14a618fb3 100644
--- a/installer/Subtitle_Edit_installer.iss
+++ b/installer/Subtitle_Edit_installer.iss
@@ -309,8 +309,6 @@ Source: {#bindir}\Vosk.dll;                        DestDir: {app};
 Source: {#bindir}\NCalc.dll;                       DestDir: {app};                                    Flags: ignoreversion; Components: main
 Source: ..\src\ui\DLLs\Interop.QuartzTypeLib.dll;  DestDir: {app};                                    Flags: ignoreversion; Components: main
 Source: {#bindir}\Newtonsoft.Json.dll;             DestDir: {app};                                    Flags: ignoreversion; Components: main
-Source: {#bindir}\Xceed.Document.NET.dll;          DestDir: {app};                                    Flags: ignoreversion; Components: main
-Source: {#bindir}\Xceed.Words.NET.dll;             DestDir: {app};                                    Flags: ignoreversion; Components: main
 Source: {#bindir}\System.Net.Http.Extensions.dll;  DestDir: {app};                                    Flags: ignoreversion; Components: main
 Source: {#bindir}\System.Net.Http.Primitives.dll;  DestDir: {app};                                    Flags: ignoreversion; Components: main
 Source: ..\Changelog.txt;                          DestDir: {app};                                    Flags: ignoreversion; Components: main
@@ -350,8 +348,6 @@ Type: files;      Name: {app}\Vosk.dll;                               Check: IsU
 Type: files;      Name: {app}\NCalc.dll;                              Check: IsUpgrade()
 Type: files;      Name: {app}\Interop.QuartzTypeLib.dll;              Check: IsUpgrade()
 Type: files;      Name: {app}\Newtonsoft.Json.dll;                    Check: IsUpgrade()
-Type: files;      Name: {app}\Xceed.Document.NET.dll;                 Check: IsUpgrade()
-Type: files;      Name: {app}\Xceed.Words.NET.dll;                    Check: IsUpgrade()
 Type: files;      Name: {app}\System.Net.Http.Extensions.dll;         Check: IsUpgrade()
 Type: files;      Name: {app}\System.Net.Http.Primitives.dll;         Check: IsUpgrade()