there are some links that i would suggest you to check, please check the following links Completely,
http://forums.cnet.com/7723-6142_102-249839/help-my-cmd-field-does-not-recognize-commands-anymore/
http://cboard.cprogramming.com/tech-board/54615-there-no-netstat.html
Completely read them there are a lot of fixes available here,
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If netstat is not the issue, you need to run Tomcat and thats the final goal, then
Inside your Tomcat installation file you will have the
conf folder, inside that folder you will find the
server.xml, open this file in Notepad or other text Editor, you will find
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
The above means that your Tomcat uses port 8080 for Starting, during start all the required ports must be free, if the ports are used by other programs, then your Server does not start.
The simple way is to search for 8080 by using
Edit-->Find(Ctrl+F) and type 8080 and search, then you can change connecting port, Say for example
<Connector port="8082" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
Now if the adove is found in your server.xml, then your Tomcat will use port 8082, thus you can change the port Number.
There are some more ports in the Server.xml thats used by Tomcat, they are 8009,8443 all these are Default Values,
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The Command netstat will give the user the current status of all the ports, thus its very useful in your case, if you are able to open netstat then you can check the availablity of the required ports, if your netstat does not work then you cant check your ports, but you can always run tomcat in a different port.
"netstat not workink" is an issue which will come back to you again in the future, so i recommend that you solve it today.
Best of Luck