diff --git a/tools/legacy/build_plugin_2501_vs2022.py b/tools/legacy/build_plugin_2501_vs2022.py
index 3216750..a60a0f3 100644
--- a/tools/legacy/build_plugin_2501_vs2022.py
+++ b/tools/legacy/build_plugin_2501_vs2022.py
@@ -141,6 +141,7 @@ def _find_msbuild_via_vswhere(vs_version: str) -> 'Optional[Tuple[Path, str, str
                     str(_VSWHERE_PATH),
                     '-version', _VS_VERSION_RANGE[ver],
                     '-latest',
+                    '-prerelease',
                     '-requires', 'Microsoft.Component.MSBuild',
                     '-find', r'MSBuild\**\Bin\MSBuild.exe',
                 ],
diff --git a/tools/legacy/build_plugin_2501_vs2026.py b/tools/legacy/build_plugin_2501_vs2026.py
index af4bf47..381c4b4 100644
--- a/tools/legacy/build_plugin_2501_vs2026.py
+++ b/tools/legacy/build_plugin_2501_vs2026.py
@@ -150,6 +150,7 @@ def _find_msbuild_via_vswhere(vs_version: str) -> 'Optional[Tuple[Path, str, str
                     '-products', '*',
                     '-version', _VS_VERSION_RANGE[ver],
                     '-latest',
+                    '-prerelease',
                     '-requires', 'Microsoft.Component.MSBuild',
                     '-find', r'MSBuild\**\Bin\MSBuild.exe',
                 ],
diff --git a/tools/legacy/build_plugin_2600_vs2026.py b/tools/legacy/build_plugin_2600_vs2026.py
index 9885b7e..6eea737 100644
--- a/tools/legacy/build_plugin_2600_vs2026.py
+++ b/tools/legacy/build_plugin_2600_vs2026.py
@@ -150,6 +150,7 @@ def _find_msbuild_via_vswhere(vs_version: str) -> 'Optional[Tuple[Path, str, str
                     '-products', '*',
                     '-version', _VS_VERSION_RANGE[ver],
                     '-latest',
+                    '-prerelease',
                     '-requires', 'Microsoft.Component.MSBuild',
                     '-find', r'MSBuild\**\Bin\MSBuild.exe',
                 ],
diff --git a/tools/legacy/build_plugin_2601_vs2026.py b/tools/legacy/build_plugin_2601_vs2026.py
index 1becb6d..8ba9ef5 100755
--- a/tools/legacy/build_plugin_2601_vs2026.py
+++ b/tools/legacy/build_plugin_2601_vs2026.py
@@ -150,6 +150,7 @@ def _find_msbuild_via_vswhere(vs_version: str) -> 'Optional[Tuple[Path, str, str
                     '-products', '*',
                     '-version', _VS_VERSION_RANGE[ver],
                     '-latest',
+                    '-prerelease',
                     '-requires', 'Microsoft.Component.MSBuild',
                     '-find', r'MSBuild\**\Bin\MSBuild.exe',
                 ],
diff --git a/tools/legacy/build_plugin_vs2022.py b/tools/legacy/build_plugin_vs2022.py
index 9732cea..ba709e8 100644
--- a/tools/legacy/build_plugin_vs2022.py
+++ b/tools/legacy/build_plugin_vs2022.py
@@ -146,6 +146,7 @@ def _find_msbuild_via_vswhere(vs_version: str) -> 'Optional[Tuple[Path, str, str
                     str(_VSWHERE_PATH),
                     '-version', _VS_VERSION_RANGE[ver],
                     '-latest',
+                    '-prerelease',
                     '-requires', 'Microsoft.Component.MSBuild',
                     '-find', r'MSBuild\**\Bin\MSBuild.exe',
                 ],
diff --git a/tools/legacy/build_plugin_vs2026.py b/tools/legacy/build_plugin_vs2026.py
index 15a0efe..553e326 100644
--- a/tools/legacy/build_plugin_vs2026.py
+++ b/tools/legacy/build_plugin_vs2026.py
@@ -150,6 +150,7 @@ def _find_msbuild_via_vswhere(vs_version: str) -> 'Optional[Tuple[Path, str, str
                     '-products', '*',
                     '-version', _VS_VERSION_RANGE[ver],
                     '-latest',
+                    '-prerelease',
                     '-requires', 'Microsoft.Component.MSBuild',
                     '-find', r'MSBuild\**\Bin\MSBuild.exe',
                 ],
diff --git a/tools/legacy/build_plugin_zstd_vs2026.py b/tools/legacy/build_plugin_zstd_vs2026.py
index 662cea5..9a905a1 100644
--- a/tools/legacy/build_plugin_zstd_vs2026.py
+++ b/tools/legacy/build_plugin_zstd_vs2026.py
@@ -150,6 +150,7 @@ def _find_msbuild_via_vswhere(vs_version: str) -> 'Optional[Tuple[Path, str, str
                     '-products', '*',
                     '-version', _VS_VERSION_RANGE[ver],
                     '-latest',
+                    '-prerelease',
                     '-requires', 'Microsoft.Component.MSBuild',
                     '-find', r'MSBuild\**\Bin\MSBuild.exe',
                 ],