diff --git a/builds/msvc/vs2022/bs/bs.props b/builds/msvc/vs2022/bs/bs.props
index ba867487..6df6b756 100644
--- a/builds/msvc/vs2022/bs/bs.props
+++ b/builds/msvc/vs2022/bs/bs.props
@@ -31,7 +31,8 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'dynamic'">
-    <Linkage-secp256k1>dynamic</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">dynamic</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">dynamic</Linkage-ultrafast>
     <Linkage-libbitcoin-system>dynamic</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>dynamic</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>dynamic</Linkage-libbitcoin-network>
@@ -39,7 +40,8 @@
     <Linkage-libbitcoin-server>dynamic</Linkage-libbitcoin-server>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'ltcg'">
-    <Linkage-secp256k1>ltcg</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">ltcg</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">ltcg</Linkage-ultrafast>
     <Linkage-libbitcoin-system>ltcg</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>ltcg</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>ltcg</Linkage-libbitcoin-network>
@@ -47,13 +49,17 @@
     <Linkage-libbitcoin-server>ltcg</Linkage-libbitcoin-server>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'static'">
-    <Linkage-secp256k1>static</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">static</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">static</Linkage-ultrafast>
     <Linkage-libbitcoin-system>static</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>static</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>static</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>static</Linkage-libbitcoin-node>
     <Linkage-libbitcoin-server>static</Linkage-libbitcoin-server>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Option-ultrafast)' == 'true' And '$(Option-cuda)' == 'true'">
+    <Linkage-ultrafast>cuda</Linkage-ultrafast>
+  </PropertyGroup>
 
   <!-- Messages -->
 
diff --git a/builds/msvc/vs2022/libbitcoin-server-test/libbitcoin-server-test.props b/builds/msvc/vs2022/libbitcoin-server-test/libbitcoin-server-test.props
index 895afc7b..5f985f2f 100644
--- a/builds/msvc/vs2022/libbitcoin-server-test/libbitcoin-server-test.props
+++ b/builds/msvc/vs2022/libbitcoin-server-test/libbitcoin-server-test.props
@@ -33,7 +33,8 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'dynamic'">
-    <Linkage-secp256k1>dynamic</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">dynamic</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">dynamic</Linkage-ultrafast>
     <Linkage-libbitcoin-system>dynamic</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>dynamic</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>dynamic</Linkage-libbitcoin-network>
@@ -41,7 +42,8 @@
     <Linkage-libbitcoin-server>dynamic</Linkage-libbitcoin-server>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'ltcg'">
-    <Linkage-secp256k1>ltcg</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">ltcg</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">ltcg</Linkage-ultrafast>
     <Linkage-libbitcoin-system>ltcg</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>ltcg</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>ltcg</Linkage-libbitcoin-network>
@@ -49,13 +51,17 @@
     <Linkage-libbitcoin-server>ltcg</Linkage-libbitcoin-server>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'static'">
-    <Linkage-secp256k1>static</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">static</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">static</Linkage-ultrafast>
     <Linkage-libbitcoin-system>static</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>static</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>static</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>static</Linkage-libbitcoin-node>
     <Linkage-libbitcoin-server>static</Linkage-libbitcoin-server>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Option-ultrafast)' == 'true' And '$(Option-cuda)' == 'true'">
+    <Linkage-ultrafast>cuda</Linkage-ultrafast>
+  </PropertyGroup>
 
   <!-- Messages -->
 
diff --git a/builds/msvc/vs2022/libbitcoin-server/libbitcoin-server.props b/builds/msvc/vs2022/libbitcoin-server/libbitcoin-server.props
index d2794640..147a6b19 100644
--- a/builds/msvc/vs2022/libbitcoin-server/libbitcoin-server.props
+++ b/builds/msvc/vs2022/libbitcoin-server/libbitcoin-server.props
@@ -38,26 +38,32 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'dynamic'">
-    <Linkage-secp256k1>dynamic</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">dynamic</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">dynamic</Linkage-ultrafast>
     <Linkage-libbitcoin-system>dynamic</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>dynamic</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>dynamic</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>dynamic</Linkage-libbitcoin-node>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'ltcg'">
-    <Linkage-secp256k1>ltcg</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">ltcg</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">ltcg</Linkage-ultrafast>
     <Linkage-libbitcoin-system>ltcg</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>ltcg</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>ltcg</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>ltcg</Linkage-libbitcoin-node>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'static'">
-    <Linkage-secp256k1>static</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">static</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">static</Linkage-ultrafast>
     <Linkage-libbitcoin-system>static</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>static</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>static</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>static</Linkage-libbitcoin-node>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Option-ultrafast)' == 'true' And '$(Option-cuda)' == 'true'">
+    <Linkage-ultrafast>cuda</Linkage-ultrafast>
+  </PropertyGroup>
 
   <!-- Messages -->
 
diff --git a/builds/msvc/vs2022/libbitcoin-system.import.props b/builds/msvc/vs2022/libbitcoin-system.import.props
index bbf13a73..f5166a0a 100644
--- a/builds/msvc/vs2022/libbitcoin-system.import.props
+++ b/builds/msvc/vs2022/libbitcoin-system.import.props
@@ -21,6 +21,9 @@
     <!--<Option-256>true</Option-256>-->
     <!--<Option-128>true</Option-128>-->
     <Option-sha Condition="'$(Option-sha)' == ''">false</Option-sha>
+    <Option-secp256k1 Condition="'$(Option-secp256k1)' == ''">true</Option-secp256k1>
+    <Option-ultrafast Condition="'$(Option-ultrafast)' == ''">false</Option-ultrafast>
+    <Option-cuda Condition="'$(Option-cuda)' == ''">false</Option-cuda>
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
@@ -36,6 +39,9 @@
 
   <Target Name="SystemOptionInfo" BeforeTargets="PrepareForBuild">
     <Message Text="Option-sha        : $(Option-sha)" Importance="high"/>
+    <Message Text="Option-secp256k1  : $(Option-secp256k1)" Importance="high"/>
+    <Message Text="Option-ultrafast  : $(Option-ultrafast)" Importance="high"/>
+    <Message Text="Option-cuda       : $(Option-cuda)" Importance="high"/>
     <!--<Message Text="Option-512        : $(Option-512)" Importance="high"/>-->
     <!--<Message Text="Option-256        : $(Option-256)" Importance="high"/>-->
     <!--<Message Text="Option-128        : $(Option-128)" Importance="high"/>-->
diff --git a/builds/msvc/vs2026/bs/bs.props b/builds/msvc/vs2026/bs/bs.props
index ba867487..6df6b756 100644
--- a/builds/msvc/vs2026/bs/bs.props
+++ b/builds/msvc/vs2026/bs/bs.props
@@ -31,7 +31,8 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'dynamic'">
-    <Linkage-secp256k1>dynamic</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">dynamic</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">dynamic</Linkage-ultrafast>
     <Linkage-libbitcoin-system>dynamic</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>dynamic</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>dynamic</Linkage-libbitcoin-network>
@@ -39,7 +40,8 @@
     <Linkage-libbitcoin-server>dynamic</Linkage-libbitcoin-server>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'ltcg'">
-    <Linkage-secp256k1>ltcg</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">ltcg</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">ltcg</Linkage-ultrafast>
     <Linkage-libbitcoin-system>ltcg</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>ltcg</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>ltcg</Linkage-libbitcoin-network>
@@ -47,13 +49,17 @@
     <Linkage-libbitcoin-server>ltcg</Linkage-libbitcoin-server>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'static'">
-    <Linkage-secp256k1>static</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">static</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">static</Linkage-ultrafast>
     <Linkage-libbitcoin-system>static</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>static</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>static</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>static</Linkage-libbitcoin-node>
     <Linkage-libbitcoin-server>static</Linkage-libbitcoin-server>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Option-ultrafast)' == 'true' And '$(Option-cuda)' == 'true'">
+    <Linkage-ultrafast>cuda</Linkage-ultrafast>
+  </PropertyGroup>
 
   <!-- Messages -->
 
diff --git a/builds/msvc/vs2026/libbitcoin-server-test/libbitcoin-server-test.props b/builds/msvc/vs2026/libbitcoin-server-test/libbitcoin-server-test.props
index 895afc7b..5f985f2f 100644
--- a/builds/msvc/vs2026/libbitcoin-server-test/libbitcoin-server-test.props
+++ b/builds/msvc/vs2026/libbitcoin-server-test/libbitcoin-server-test.props
@@ -33,7 +33,8 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'dynamic'">
-    <Linkage-secp256k1>dynamic</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">dynamic</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">dynamic</Linkage-ultrafast>
     <Linkage-libbitcoin-system>dynamic</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>dynamic</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>dynamic</Linkage-libbitcoin-network>
@@ -41,7 +42,8 @@
     <Linkage-libbitcoin-server>dynamic</Linkage-libbitcoin-server>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'ltcg'">
-    <Linkage-secp256k1>ltcg</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">ltcg</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">ltcg</Linkage-ultrafast>
     <Linkage-libbitcoin-system>ltcg</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>ltcg</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>ltcg</Linkage-libbitcoin-network>
@@ -49,13 +51,17 @@
     <Linkage-libbitcoin-server>ltcg</Linkage-libbitcoin-server>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'static'">
-    <Linkage-secp256k1>static</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">static</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">static</Linkage-ultrafast>
     <Linkage-libbitcoin-system>static</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>static</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>static</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>static</Linkage-libbitcoin-node>
     <Linkage-libbitcoin-server>static</Linkage-libbitcoin-server>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Option-ultrafast)' == 'true' And '$(Option-cuda)' == 'true'">
+    <Linkage-ultrafast>cuda</Linkage-ultrafast>
+  </PropertyGroup>
 
   <!-- Messages -->
 
diff --git a/builds/msvc/vs2026/libbitcoin-server/libbitcoin-server.props b/builds/msvc/vs2026/libbitcoin-server/libbitcoin-server.props
index d2794640..147a6b19 100644
--- a/builds/msvc/vs2026/libbitcoin-server/libbitcoin-server.props
+++ b/builds/msvc/vs2026/libbitcoin-server/libbitcoin-server.props
@@ -38,26 +38,32 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'dynamic'">
-    <Linkage-secp256k1>dynamic</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">dynamic</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">dynamic</Linkage-ultrafast>
     <Linkage-libbitcoin-system>dynamic</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>dynamic</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>dynamic</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>dynamic</Linkage-libbitcoin-node>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'ltcg'">
-    <Linkage-secp256k1>ltcg</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">ltcg</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">ltcg</Linkage-ultrafast>
     <Linkage-libbitcoin-system>ltcg</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>ltcg</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>ltcg</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>ltcg</Linkage-libbitcoin-node>
   </PropertyGroup>
   <PropertyGroup Condition="'$(DefaultLinkage)' == 'static'">
-    <Linkage-secp256k1>static</Linkage-secp256k1>
+    <Linkage-secp256k1 Condition="'$(Option-secp256k1)' != 'false'">static</Linkage-secp256k1>
+    <Linkage-ultrafast Condition="'$(Option-ultrafast)' == 'true'">static</Linkage-ultrafast>
     <Linkage-libbitcoin-system>static</Linkage-libbitcoin-system>
     <Linkage-libbitcoin-database>static</Linkage-libbitcoin-database>
     <Linkage-libbitcoin-network>static</Linkage-libbitcoin-network>
     <Linkage-libbitcoin-node>static</Linkage-libbitcoin-node>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Option-ultrafast)' == 'true' And '$(Option-cuda)' == 'true'">
+    <Linkage-ultrafast>cuda</Linkage-ultrafast>
+  </PropertyGroup>
 
   <!-- Messages -->
 
diff --git a/builds/msvc/vs2026/libbitcoin-system.import.props b/builds/msvc/vs2026/libbitcoin-system.import.props
index bbf13a73..f5166a0a 100644
--- a/builds/msvc/vs2026/libbitcoin-system.import.props
+++ b/builds/msvc/vs2026/libbitcoin-system.import.props
@@ -21,6 +21,9 @@
     <!--<Option-256>true</Option-256>-->
     <!--<Option-128>true</Option-128>-->
     <Option-sha Condition="'$(Option-sha)' == ''">false</Option-sha>
+    <Option-secp256k1 Condition="'$(Option-secp256k1)' == ''">true</Option-secp256k1>
+    <Option-ultrafast Condition="'$(Option-ultrafast)' == ''">false</Option-ultrafast>
+    <Option-cuda Condition="'$(Option-cuda)' == ''">false</Option-cuda>
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
@@ -36,6 +39,9 @@
 
   <Target Name="SystemOptionInfo" BeforeTargets="PrepareForBuild">
     <Message Text="Option-sha        : $(Option-sha)" Importance="high"/>
+    <Message Text="Option-secp256k1  : $(Option-secp256k1)" Importance="high"/>
+    <Message Text="Option-ultrafast  : $(Option-ultrafast)" Importance="high"/>
+    <Message Text="Option-cuda       : $(Option-cuda)" Importance="high"/>
     <!--<Message Text="Option-512        : $(Option-512)" Importance="high"/>-->
     <!--<Message Text="Option-256        : $(Option-256)" Importance="high"/>-->
     <!--<Message Text="Option-128        : $(Option-128)" Importance="high"/>-->