diff --git a/Dockerfile.jenkins b/Dockerfile.jenkins
index 8499c3a..7291fd7 100644
--- a/Dockerfile.jenkins
+++ b/Dockerfile.jenkins
@@ -1,5 +1,6 @@
 FROM schemers/gauche
 RUN echo "deb http://ftp.de.debian.org/debian bookworm main" > /etc/apt/sources.list
-RUN apt update && apt install -y wine
+RUN dpkg --add-architecture i386
+RUN apt update && apt install -y wine32 wine64 make wget
 COPY ./executables/nsis-3.10-setup.exe /setup.exe
 RUN wine setup.exe /S
diff --git a/Jenkinsfile b/Jenkinsfile
index 4227528..dd463a6 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -4,7 +4,7 @@ pipeline {
         dockerfile {
             filename 'Dockerfile.jenkins'
             dir '.'
-            args '-u root'
+            args '-u root --privileged'
         }
     }
 
@@ -15,6 +15,7 @@ pipeline {
     stages {
         stage("Build") {
             steps {
+                sh 'whoami'
                 sh 'make'
                 archiveArtifacts artifacts: 'setup_*.exe'
             }
diff --git a/README.md b/README.md
index e4ec726..5f17407 100644
--- a/README.md
+++ b/README.md
@@ -7,15 +7,17 @@ there might be more than one implementation.
 
 ## Installation
 
-Download the latest setup executable from Jenkins and run it.
+Download the latest setup executable from
+[Jenkins](https://jenkins.scheme.org/job/rinne/job/snow-fort-windows-installer/job/main/)
+and run it.
 
 
 ## Using the libraries
 
 Add the installation path to your implementations load path:
 
-    %ProgramFiles%/snow
+    %SNOW_LIBRARY_PATH%
 
 For example with Gauche:
 
-    gosh.exe -r7 -A "%ProgramFiles%/snow" main.scm
+    gosh.exe -r7 -A "%SNOW_LIBRARY_PATH%" main.scm
diff --git a/install.nsi b/install.nsi
index bba4f43..07de8a1 100644
--- a/install.nsi
+++ b/install.nsi
@@ -1,3 +1,5 @@
+
+
 OutFile "setup_snow.exe"
 InstallDir "$PROGRAMFILES64"
 
@@ -6,5 +8,13 @@ Section
     RMDir "$INSTDIR"
     File /r "snow"
     Push "$INSTDIR"
+
+    !include "winmessages.nsh"
+    !define env_hklm 'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"'
+    !define env_hkcu 'HKCU "Environment"'
+
+    WriteRegExpandStr ${env_hklm} SNOW_LIBRARY_PATH "$PROGRAMFILES64/snow"
+    WriteRegExpandStr ${env_hkcu} SNOW_LIBRARY_PATH "$PROGRAMFILES64/snow"
+    SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000
 SectionEnd