diff --git a/build.gradle b/build.gradle
index d07ef80..b41ac93 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,7 +13,7 @@ subprojects {
     apply plugin: 'groovy'
 
     dependencies {
-        testImplementation 'org.spockframework:spock-core:2.0-groovy-3.0'
+        testImplementation 'org.spockframework:spock-core:2.1-groovy-3.0'
         testImplementation "org.slf4j:slf4j-api:${slf4jVersion}"
         testImplementation "org.slf4j:slf4j-simple:${slf4jVersion}"
 
diff --git a/client/doc/sysmon-client.service b/client/doc/sysmon-client.service
index e6e25d9..56a310f 100644
--- a/client/doc/sysmon-client.service
+++ b/client/doc/sysmon-client.service
@@ -1,5 +1,5 @@
 [Unit]
-Description=Sysmon Client Service
+Description=Sysmon Client
 
 [Service]
 #User=nobody
diff --git a/client/doc/sysmon-client.sh b/client/doc/sysmon-client.sh
index e958d1f..95d55c6 100644
--- a/client/doc/sysmon-client.sh
+++ b/client/doc/sysmon-client.sh
@@ -11,7 +11,7 @@
 
 dir="/opt/sysmon/client"
 cmd="/opt/sysmon/client/bin/client"
-args="-s http://10.20.30.40:9925/metrics"
+args="-s http://10.20.30.40:9925/metrics"   # Specify sysmon-server URL here
 user=""
 
 name=`basename $0`
@@ -19,6 +19,10 @@ pid_file="/var/run/$name.pid"
 stdout_log="/var/log/$name.log"
 stderr_log="/var/log/$name.err"
 
+# Uncomment if required
+#JAVA_HOME=/usr/java8_64
+#export JAVA_HOME
+
 get_pid() {
     cat "$pid_file"
 }
diff --git a/client/doc/systemd.md b/client/doc/systemd.md
index 29b5fe2..1fc9bf7 100644
--- a/client/doc/systemd.md
+++ b/client/doc/systemd.md
@@ -1,4 +1,4 @@
-# SystemD Notes
+# Linux systemd notes
 
 Edit the *sysmon-client.service* file and change the sysmon-server URL accordingly to your environment.
 
@@ -9,4 +9,4 @@ cp sysmon-client.service /etc/systemd/system/
 systemctl daemon-reload
 systemctl enable sysmon-client
 systemctl restart sysmon-client
-```
\ No newline at end of file
+```
diff --git a/client/doc/sysv-init.md b/client/doc/sysv-init.md
index 909ddb7..ff66296 100644
--- a/client/doc/sysv-init.md
+++ b/client/doc/sysv-init.md
@@ -1,6 +1,18 @@
 # SysV init Notes
 
 - Copy the *sysmon-client.sh* into *sysmon-client* in the correct location for init scripts on your operating system.
-- Edit the file to specify sysmon-server URL in the *args* variable.
+- Edit the file and specify the sysmon-server URL in the *args* variable.
+- Edit the file and uncomment *JAVA_HOME* if required
 - SymLink to the required run-levels.
 
+
+## AIX & VIO
+
+```shell
+# Remember to edit and set JAVA_HOME to eg. /usr/java8_64
+cp sysmon-client.sh /etc/rc.d/init.d/sysmon-client
+chmod +x /etc/rc.d/init.d/sysmon-client
+ln -s /etc/rc.d/init.d/sysmon-client /etc/rc.d/rc2.d/Ssysmon-client
+ln -s /etc/rc.d/init.d/sysmon-client /etc/rc.d/rc2.d/Ksysmon-client
+```
+
diff --git a/plugins/build.gradle b/plugins/build.gradle
index d4e7920..45703e2 100644
--- a/plugins/build.gradle
+++ b/plugins/build.gradle
@@ -10,7 +10,7 @@ subprojects {
     apply plugin: 'groovy'
 
     dependencies {
-        testImplementation 'org.spockframework:spock-core:2.0-groovy-3.0'
+        testImplementation 'org.spockframework:spock-core:2.1-groovy-3.0'
         testImplementation "org.slf4j:slf4j-api:${slf4jVersion}"
         testImplementation "org.slf4j:slf4j-simple:${slf4jVersion}"
         testImplementation project(':shared')
diff --git a/server/build.gradle b/server/build.gradle
index 9fa672b..a28a7b2 100644
--- a/server/build.gradle
+++ b/server/build.gradle
@@ -28,7 +28,7 @@ def projectName = "sysmon-server"
 application {
     // Define the main class for the application.
     mainClass.set('sysmon.server.Application')
-    applicationDefaultJvmArgs = [ "-server", "-Xmx128m" ]
+    applicationDefaultJvmArgs = [ "-server", "-Xmx64m" ]
 }
 
 run {
diff --git a/server/doc/sysmon-server.sh b/server/doc/sysmon-server.sh
index 60f4b38..b89a031 100644
--- a/server/doc/sysmon-server.sh
+++ b/server/doc/sysmon-server.sh
@@ -19,6 +19,10 @@ pid_file="/var/run/$name.pid"
 stdout_log="/var/log/$name.log"
 stderr_log="/var/log/$name.err"
 
+# Uncomment if required
+#JAVA_HOME=/usr/java8_64
+#export JAVA_HOME
+
 get_pid() {
     cat "$pid_file"
 }
diff --git a/server/doc/systemd.md b/server/doc/systemd.md
index 3a196cc..19d527d 100644
--- a/server/doc/systemd.md
+++ b/server/doc/systemd.md
@@ -1,4 +1,4 @@
-# SystemD Notes
+# Linux systemd notes
 
 Setup as systemd service to start automatically at boot:
 
@@ -7,4 +7,4 @@ cp sysmon-server.service /etc/systemd/system/
 systemctl daemon-reload
 systemctl enable sysmon-server
 systemctl restart sysmon-server
-```
\ No newline at end of file
+```