cache programming

Studio (note trailing colon):

C:\InterSystems\Cache\bin\CStudio.exe /fastconnect=IP_or_FQDN[PORT]:NameSpace:CacheUserName:

For the SMP use the URL:
http://IP_or_FQDN:PORT/csp/sys/UtilHome.csp
 

And you can even use the Output window in Studio to execute commands (but don't do Halt !)