How to find which port a service is using by "grep" the result of netstat output on windows 7?

i want to find which port a service is using. i know i can use

netstat -anb 

to show all the protocols and all applications. but how can i filter the result, eg. if the program i'm trying to identify is "muster"

netstat -a -a -b | find /i "muster"

but it only returns the application line

  Muster_Dispatcher_8
  Muster_Dispatcher_8
  Muster_Dispatcher_8
  Muster_Dispatcher_8
  Muster_Dispatcher_8

because programe name and port number are not on the same line.

...
 [svchost.exe]
  TCP    0.0.0.0:5357           0.0.0.0:0              LISTENING
 Can not obtain ownership information
  TCP    0.0.0.0:5800           0.0.0.0:0              LISTENING
 [System]
  TCP    0.0.0.0:5900           0.0.0.0:0              LISTENING
 [System]
  TCP    0.0.0.0:5938           0.0.0.0:0              LISTENING
 [TeamViewer_Service.exe]
  TCP    0.0.0.0:7955           0.0.0.0:0              LISTENING
 [KMPProcess.exe]
  TCP    0.0.0.0:9780           0.0.0.0:0              LISTENING
  Muster_Dispatcher_8
 [System]
  TCP    0.0.0.0:9781           0.0.0.0:0              LISTENING
  Muster_Dispatcher_8
 [System]
  TCP    0.0.0.0:9783           0.0.0.0:0              LISTENING
  Muster_Dispatcher_8
 [System]
  TCP    0.0.0.0:9790           0.0.0.0:0              LISTENING
  Muster_Dispatcher_8
 [System]
  TCP    0.0.0.0:9791           0.0.0.0:0              LISTENING
  Muster_Dispatcher_8
 [System]
...

how can i tell find or findstr to return lines in context, meaning ,if line n is a match, eg. return line n-1,n,n+1 ? ( include the surrounding lines of the matching line )

can this be done in simple command prompt , or has to be in a shell script ? or has to use powershell ? thanks !

the intention here is to get multiple lines of output from the command such as

...
TCP    0.0.0.0:9791           0.0.0.0:0              LISTENING   Muster_Dispatcher_8
...