diff --git a/cth/CMakeLists.txt b/cth/CMakeLists.txt
index 3c69052..6cc5bf1 100644
--- a/cth/CMakeLists.txt
+++ b/cth/CMakeLists.txt
@@ -9,7 +9,13 @@ cth_pkg_target_include_directories(
         INTERFACE incl
 )
 
-target_compile_options(cth INTERFACE $<$<CXX_COMPILER_ID:MSVC>:/Zc:preprocessor>)
+# nvcc rejects cl flags, it forwards them to its MSVC host compiler with -Xcompiler
+target_compile_options(
+        cth
+        INTERFACE
+        $<$<COMPILE_LANG_AND_ID:CXX,MSVC>:/Zc:preprocessor>
+        $<$<AND:$<COMPILE_LANGUAGE:CUDA>,$<CXX_COMPILER_ID:MSVC>>:-Xcompiler=/Zc:preprocessor>
+)
 
 # cth/hash/hash_aggregates.hpp includes boost/pfr.hpp
 cth_pkg_target_find_package(cth boost_pfr CONFIG REQUIRED)
diff --git a/cth_net/src/websocket_server.cpp b/cth_net/src/websocket_server.cpp
index 4181504..5eb53bd 100644
--- a/cth_net/src/websocket_server.cpp
+++ b/cth_net/src/websocket_server.cpp
@@ -4,17 +4,44 @@
 #include "websocket_connection_state.hpp"
 
 #include "cth/data/hash_map.hpp"
+#include "cth/io/log.hpp"
 
 #include <hv/WebSocketServer.h>
+#include <hv/hlog.h>
 #include <hv/hsocket.h>
 
 #include <atomic>
 #include <deque>
+#include <format>
 #include <mutex>
+#include <string_view>
 #include <utility>
 #include <vector>
 
 namespace cth::net {
+namespace {
+    void forward_libhv_log(int level, char const* message, int length) {
+        std::string_view text{message, static_cast<std::size_t>(length)};
+        while(text.ends_with('\n') || text.ends_with('\r'))
+            text.remove_suffix(1);
+
+        auto const severity = level >= LOG_LEVEL_ERROR ? except::ERR : except::WARNING;
+        log::msg(severity, std::format("libhv: {}", text));
+    }
+
+    /**
+     * libhv's default logger writes libhv.<date>.log into the working directory,
+     * its warnings and errors go to cth::log instead
+     */
+    void route_libhv_log() {
+        static std::once_flag once;
+        std::call_once(once, [] {
+            hlog_set_format("%s");
+            hlog_set_level(LOG_LEVEL_WARN);
+            hlog_set_handler(forward_libhv_log);
+        });
+    }
+}
 
 struct websocket_server::impl {
     hv::WebSocketService service;
@@ -48,6 +75,7 @@ websocket_server::impl::impl(std::uint16_t port, std::size_t maxMessageSize) :
     maxMessageSize{maxMessageSize} {
     CTH_CRITICAL(maxMessageSize == 0, "WebSocket maximum message size must be positive") {}
 
+    route_libhv_log();
     configure_callbacks();
 
     auto const listenFd = Listen(port, "127.0.0.1");
diff --git a/cth_win/src/io/win_key_convert.hpp b/cth_win/src/io/win_key_convert.hpp
index 9167d00..9cfa577 100644
--- a/cth_win/src/io/win_key_convert.hpp
+++ b/cth_win/src/io/win_key_convert.hpp
@@ -284,7 +284,9 @@ struct win_key_params {
             break;
 
         default:
-            if(p.vkCode >= 'A' && p.vkCode <= 'Z')
+            if(p.vkCode >= VK_F1 && p.vkCode <= VK_F12)
+                key = static_cast<Key>(static_cast<uint16_t>(Key::F1) + (p.vkCode - VK_F1));
+            else if(p.vkCode >= 'A' && p.vkCode <= 'Z')
                 key = static_cast<Key>(static_cast<uint16_t>(Key::A) + (p.vkCode - 'A'));
             else if(p.vkCode >= '0' && p.vkCode <= '9')
                 key = static_cast<Key>(static_cast<uint16_t>(Key::DIGIT_0) + (p.vkCode - '0'));