I used to be able to open pps Files right from within thunderbird until I had to get my Windows XP reinstalled, now the only way I can open pps files is to save them to my desk top and then open them. when I try to click on the PPS file in Thunderbird I get the following message
" c:\windows\installer\{95120000-00AF-0409-0000-000000office}\ ppvwicon.exe is not a valid win 32 application."

when I click OK, the following message comes on
"C:\DOCUME~1\owner\local~1\temp\name of pps file could not be opened because of an unknown error

it then shows a down load box with the name of the file and "failed - mailbox resources.

in Thunderbird under tools Options,attachments it shows pps file with the action use 2007 microsoft office component. Any suggestions. Thanks