Answer

hello sir

 

thank you for the info.

 

of course, you don't need to buy it if you don't want to.

 

please go to your control panel.

and go to your programs section

 

from the list, select microsoft office 2007, and unistall it.

 

in short, please uninstall your microsoft office 2007 trial edition from your computer.

 

when done, you can open your PPS files with your viewer. to do is, you need to associate your pps files to be opened by powerpoint viewer. you do it only one time.

 

how to associate it?

just right click on your PPS file, and select OPEN WITH

and then select CHOOSE PROGRAM

 

it will list you some programs. from the list, select MICROSOFT POWERPOINT VIEWER 2007

 

you will also see a checkbox, which says "always use this program to open this kind of file" please check it too (put a tick) and press ok

 

that's it. from now on, when you double click on your pps or ppt files, powerpoint viewer will open them.

 

i hope that helps,

if you need to ask questions, or if this does not help for any reason, just hit "reply" and i will be happy to assist your further

Regards