ofbiz pos and webpos installer packages

[ara]

Hi,

I have just installed OFBiz on my server. I wanted to install pos and webpos. I followed the instructions in the following link to install them:
https://cwiki.apache.org/confluence/display/OFBIZ/POS+System

When I run java -jar ofbiz.jar -pos command I received the following error:

D:\ofbiz>java -jar ofbiz.jar -pos
Exception in thread "main" org.ofbiz.base.start.StartupException: Couldn't not f
etch config instance
        at org.ofbiz.base.start.Start.init(Start.java:202)
        at org.ofbiz.base.start.Start.main(Start.java:127)
Caused by: java.io.IOException: Cannot load configuration properties : org/ofbiz
/base/start/-pos.properties
        at org.ofbiz.base.start.Config.getPropertiesFile(Config.java:229)
        at org.ofbiz.base.start.Config.readConfig(Config.java:297)
        at org.ofbiz.base.start.Config.getInstance(Config.java:58)
        at org.ofbiz.base.start.Start.init(Start.java:200)
        ... 1 more

I tried to find if there is any installer. I found ofbiz-pos.jar and ofbiz-webpos.jar. But I know how to install them.

Would somebody let me know how should I install both pos and webpos?

Thank you