Turn Off Your Computer In Your Home Via Internet Even Though You're In Office

Yes you can but you must have an internet connection
first you need to do three things.
1.go-to notepad and type these without quotes
"c:windowssystem32shutdown -s -f -t 00" and save this anywhere in c drive and u must name it as shutdown.bat.
2.sign up for a pop3 gmail account.
3.go-to start in your pc and then to all programs->microsoft office->microsoft outlook
it will ask u the mail id and password give the email id and password that u have created then click finish or next .the next step is go-to tools in outlook then send/receive->send/receive settings->define send/receive groups now u must tick the "schedule an automatic send/receive every" and set the time to 1 minute then click apply and close it.
Then again go-to tools->rules and alerts then click new rule and set a blank rule as check messages when they arrive and click next .
Step1: Give the condition as "with specific words in the subject"
step2: Click the specific word and give it as "pc shutdown" and click add and click ok and next
give the action as start an application and select the file that you saved in c drive shutdown.bat and then click finish.
Now u must have the microsoft outlook running always.
How it will work?
You must send a email to the id that u have created and the important thing is the subject should be this pc shutdown and the outlook checks the mail for every minute and if it found this subject which is the specific word it automatically shutdowns the pc.