diff --git a/windows/netgen-4.9.14.sln b/windows/netgen-4.9.14.sln
deleted file mode 100644
index 349f56d3..00000000
--- a/windows/netgen-4.9.14.sln
+++ /dev/null
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diff --git a/windows/netgen-4.9.14.vcproj b/windows/netgen-4.9.14.vcproj
deleted file mode 100644
index 18174912..00000000
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diff --git a/windows/netgen-5.0.sln b/windows/netgen-5.0.sln
deleted file mode 100644
index f427e8e5..00000000
--- a/windows/netgen-5.0.sln
+++ /dev/null
@@ -1,38 +0,0 @@
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-Microsoft Visual Studio Solution File, Format Version 10.00
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diff --git a/windows/netgen-5.0.vcproj b/windows/netgen-5.0.vcproj
deleted file mode 100644
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--- a/windows/netgen-5.0.vcproj
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