diff --git a/doc/win-dev.ps1 b/doc/win-dev.ps1
index 5729343e3..46fc1213a 100644
--- a/doc/win-dev.ps1
+++ b/doc/win-dev.ps1
@@ -13,7 +13,7 @@ function ThrowOnNativeFailure {
 
 $VsVersion = 2019
 $MsvcVersion = '14.2'
-$BoostVersion = @(1, 87, 0)
+$BoostVersion = @(1, 88, 0)
 $OpensslVersion = '3_0_16'
 
 switch ($Env:BITS) {
diff --git a/lib/base/win32.hpp b/lib/base/win32.hpp
index 064c5d669..80d8729f3 100644
--- a/lib/base/win32.hpp
+++ b/lib/base/win32.hpp
@@ -5,7 +5,7 @@
 
 #define WIN32_LEAN_AND_MEAN
 #ifndef _WIN32_WINNT
-#define _WIN32_WINNT _WIN32_WINNT_VISTA
+#define _WIN32_WINNT _WIN32_WINNT_WIN7
 #endif /* _WIN32_WINNT */
 #define NOMINMAX
 #include <winsock2.h>
diff --git a/tools/win32/configure-dev.ps1 b/tools/win32/configure-dev.ps1
index 7729dc58f..a82560d25 100644
--- a/tools/win32/configure-dev.ps1
+++ b/tools/win32/configure-dev.ps1
@@ -34,10 +34,10 @@ if (-not (Test-Path env:OPENSSL_ROOT_DIR)) {
   $env:OPENSSL_ROOT_DIR = 'c:\local\OpenSSL-Win64'
 }
 if (-not (Test-Path env:BOOST_ROOT)) {
-  $env:BOOST_ROOT = 'c:\local\boost_1_87_0'
+  $env:BOOST_ROOT = 'c:\local\boost_1_88_0'
 }
 if (-not (Test-Path env:BOOST_LIBRARYDIR)) {
-  $env:BOOST_LIBRARYDIR = 'c:\local\boost_1_87_0\lib64-msvc-14.2'
+  $env:BOOST_LIBRARYDIR = 'c:\local\boost_1_88_0\lib64-msvc-14.2'
 }
 if (-not (Test-Path env:FLEX_BINARY)) {
   $env:FLEX_BINARY = 'C:\ProgramData\chocolatey\bin\win_flex.exe'
diff --git a/tools/win32/configure.ps1 b/tools/win32/configure.ps1
index 008a06de0..db961a2e5 100644
--- a/tools/win32/configure.ps1
+++ b/tools/win32/configure.ps1
@@ -36,10 +36,10 @@ if (-not (Test-Path env:OPENSSL_ROOT_DIR)) {
   $env:OPENSSL_ROOT_DIR = "c:\local\OpenSSL_3_0_16-Win${env:BITS}"
 }
 if (-not (Test-Path env:BOOST_ROOT)) {
-  $env:BOOST_ROOT = "c:\local\boost_1_87_0-Win${env:BITS}"
+  $env:BOOST_ROOT = "c:\local\boost_1_88_0-Win${env:BITS}"
 }
 if (-not (Test-Path env:BOOST_LIBRARYDIR)) {
-  $env:BOOST_LIBRARYDIR = "c:\local\boost_1_87_0-Win${env:BITS}\lib${env:BITS}-msvc-14.2"
+  $env:BOOST_LIBRARYDIR = "c:\local\boost_1_88_0-Win${env:BITS}\lib${env:BITS}-msvc-14.2"
 }
 if (-not (Test-Path env:FLEX_BINARY)) {
   $env:FLEX_BINARY = 'C:\ProgramData\chocolatey\bin\win_flex.exe'