I have successfully installed Jive Messenger and now testing with Asterisk-IM client on Windows machine. Java 1.5 update 4 JDK is installed. When I tried to execute the jar file by : java -jar asterisk-im-client.jar
I encounter error : Failed to load Main-Class manifest attribute from asterisk-im-client.jar
I''ve no prior experience with Java hence any tips will be very much appreciated.