Hi Gerry,
Assuming this is the first 2007 Office product you're installing, and you're installing on a version of Windows XP (which includes
Media Center), see if these steps help.
===========
1. Use Start=>Programs=>Accessories=>Disk Cleanup
clear your Internet files and temp files then
restart your PC.
2. Locate your 2007 Office Professional Beta 2
download file and note the folder/path location.
3. Create a new folder on your PC and note that
folder/path location.
4. Use Start=>Run , and on a single line type in
the following (using the path & file names from Step 2 & 3)
and leaving out the brackets
"drive:\Step2PathOfDownload\downloadfilename.exe" /extract:"Step3path"
example: (assuming you saved to a 'downloads' folder and created a new folder named Off2007ProB2CD1) the Start=>Run line would look
like this
"c:\downloads\OPPLUS-EN.EXE" /extract:"C:\Off2007ProB2CD1"
If the extraction is successful (you'll get a dialog box telling you it was after a few minutes) then run setup from your new 2007
Office folder. (Be sure to backup your files and shutdown all other
running apps including antivirus software before starting 2007 Office setup)
If the extraction doesn't succeed then the download may be damaged/corrupted.
Use Start=>Run and type
%temp%
and locate the Setup-xxxxx.log
(file) just created and see if it has any clues on where the extraction failed.
Post back with the results please.
===========
Same problem here. Downloaded the EN version
"The language of this installation package is not supported by your system."
Running Windows MCE Version 2002 SP2
P4, 2.8GHz, 1GB ram.
Regional options set to English (United States) >>
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I hope this helped you,
Bob Buckland ?

MS Office System Products MVP
Read about it, try it, or watch the movie

the 2007 Microsoft Office system iinfo is at
http://microsoft.com/office/preview
Already have 2007 Office System Beta 2?
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http://sas.office.microsoft.com/