PhotoViewer in Windows 10

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Applications\photoviewer.dll]

[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell]

[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\open]
"MuiVerb"="@photoviewer.dll,-3043"

[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\open\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
  00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\
  6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\
  00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\
  25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\
  00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\
  6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\
  00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\
  5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\
  00,31,00,00,00

[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\open\DropTarget]
"Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}"

[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\print]
"NeverDefault"=""

[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\print\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
  00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\
  6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\
  00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\
  25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\
  00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\
  6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\
  00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\
  5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\
  00,31,00,00,00

[HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\print\DropTarget]
"Clsid"="{60fd46de-f830-4894-a628-6fa81bc0190d}"

ShadowSocks on Ubuntu LTS

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Have fun with Java Memory Tuning

First, by default JVM 1.8 setting, this program metaspace never over 20M, Old Gen never over 80M, Suvivor just around 6M - 24M.

With New Space can bump up to 1.4G, shows this Java Program create many objects for only a very short time and won't last for long. As it is a client program, GC time actually VS memory usage, we can sacrifice some GC time for much less memory as 1.4G is really large.

1st try:
-XX:MaxHeapSize=256M -XX:MaxMetaspaceSize=64M -XX:MetaspaceSize=24M -XX:NewRatio=2 -XX:CompressedClassSpaceSize=16M -XX:-UseParallelGC

Not bad, with doubled GC pause but I only use 1/5 memory

2nd try:

-XX:MaxHeapSize=128M -XX:MaxMetaspaceSize=64M -XX:MetaspaceSize=24M -XX:MaxNewSize=96M -XX:NewRatio=2 -XX:SurvivorRatio=14 -XX:CompressedClassSpaceSize=16M -XX:-UseParallelGC

Not bad, with 4 times GC pause but I only use 1/10 memory, acceptable since it is just a client program.

3rd try:

-XX:MaxHeapSize=64M -XX:MaxMetaspaceSize=64M -XX:MetaspaceSize=24M -XX:MaxNewSize=32M -XX:NewRatio=2 -XX:SurvivorRatio=3 -XX:CompressedClassSpaceSize=16M -XX:-UseParallelGC

Not good, dramatically increased to 2.3 seconds GC pause, 64M seems really a little over :)

Keep trying difference 256MB allocation.

Install EtherVPN on Ubuntu Server 16.04 LTS

http://www.softether-download.com/en.aspx?product=softether


wget http://www.softether-download.com/files/softether/v4.22-9634-beta-2016.11.27-tree/Linux/SoftEther_VPN_Server/64bit_-_Intel_x64_or_AMD64/softether-vpnserver-v4.22-9634-beta-2016.11.27-linux-x64-64bit.tar.gz


su -

apt-get install make gcc zlibc tar gzip openssl libreadline6 ncurses-bin ncurses-base ncurses-term libncurses5 libpthread-workqueue0

tar xzvf softether-vpnserver-v4.22-9634-beta-2016.11.27-linux-x64-64bit.tar.gz

cd vpnserver/
make
1
1
1

cd ~
mv vpnserver /usr/local
cd /usr/local/vpnserver/
chmod 600 *
chmod 700 vpncmd
chmod 700 vpnserver

./vpncmd
3
check
exit

cd /etc/init.d/
vi vpnserver

#!/bin/sh

### BEGIN INIT INFO
# Provides:        vpnserver
# Required-Start:  $network
# Required-Stop:   $network
# Default-Start:   2 3 4 5
# Default-Stop:    1
# Short-Description: SoftEther VPN Server
### END INIT INFO

DAEMON=/usr/local/vpnserver/vpnserver
LOCK=/var/lock/subsys/vpnserver
test -x $DAEMON || exit 0
case "$1" in
start)
$DAEMON start
touch $LOCK
;;
stop)
$DAEMON stop
rm $LOCK
;;
restart)
$DAEMON stop
sleep 3
$DAEMON start
;;
*)
echo "Usage: $0 {start|stop|restart}"
exit 1
esac
exit 0

chmod 755 /etc/init.d/vpnserver

update-rc.d vpnserver defaults
update-rc.d vpnserver enable



PS: Remember to enable Secure NAT/Virtual DHCP in order for VPN to work

Rename XunLei

XLGameLauncher
XBrowser
ThunderBrowser
XLDownTreasure
DownloadCollection

Purging old data from the database used by vCenter Server (1025914)

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1025914

UCS KVM Java 1.7/1.8

After upgrading either UCS CIMC or Java Version, you will find you have problems opening KVM Console using Java like following errors


Unable to load resource https://myserver.com:443/software/avcNuova.jar


After numerous tests, I found the following settings could allow JRE 1.7 U80 open those KVM consoles (with quite a  number of warning boxes to click though)

Disk Cleanup Wizard addon lets users delete outdated Windows updates (WINSXS) on Windows 7 SP1 or Windows Server 2008 R2 SP1

https://support.microsoft.com/en-hk/help/2852386/disk-cleanup-wizard-addon-lets-users-delete-outdated-windows-updates-on-windows-7-sp1-or-windows-server-2008-r2-sp1

You can download update patches in above link

Slow Shutdown/Reboot after Windows 10 Update to 1706

Especially when using SSD, previously like 2 seconds now become 3 minutes or more.

1. Update all Intel/Display/Sound card drivers.

2. Double check Windows doesn't change page file location from SSD to HDD.

3. Disable ClearPageFileAtShutdown

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management]
"ClearPageFileAtShutdown"=dword:00000000

After the above 3 steps, my Windows 10 shutdown speed resumed normal.