海康下载视频播放demo

从海康硬盘录像机下载的视频IE等浏览器播放不出来，好不容易找到了插件，C++可以用，c#我自己也没弄出来

lib
VideoSDK.lib
include
VideoSDK.h
doc
视频SDK V1.2.0开发指南.pdf
demo
Demo
CsharpDemo
bin
play_plugins
7-Zip.README
7za.exe
AnalyzeData.dll
AudioIntercom.dll
crash.server.properties
CrashAPI.dll
CrashServer.dll
CrashServerDamon.exe
CsharpDemo.exe
CsharpDemo.exe.config
CsharpDemo.vshost.exe
dbghelp.dll
Demo.exe
hlog.dll
hpr.dll
HPSClient.dll
HPSClientConfig.xml
htrace.dll
libeay32.dll
log4cxx.properties
log_config.xml
Microsoft.VC90.CRT.manifest
msvcp100.dll
msvcp110.dll
msvcp120.dll
msvcp140.dll
msvcp90.dll
msvcr100.dll
msvcr110.dll
msvcr120.dll
msvcr90.dll
OpenAL32.dll
play_ctrl_config.xml
ProcessFrameworkClient.dll
SystemTransform.dll
TimeConvert.dll
TransferLib.dll
vag_playctrl.dll
VideoSDK.dll
VideoSDK.ini
install_runtime.bat
VC_x64Runtime.exe
vcredist2008x64.exe
使用说明.txt