Cannot open any office programs

When I try to open any of my office documents/programs,
I'm being prompt to install MS office Xp pro with
frontpage, I follow with my Office Cd install and I get
an Error 1304 "error writing to file C:/program
files/Common files/microsoft shared/office 10/MSO.DLL.
Verify that you have access to that library"

I tried system restore and I still have the problem.

Hi Hpum,

CAUSE
You receive one of these error messages when there is a configuration
problem with your CD-ROM drive or a problem with the CD-ROM media itself.

RESOLUTION
To test your CD-ROM drive configuration, reduce the drive caching for your
CD-ROM drive. For additional information about how to reduce CD-ROM drive
caching and about how to test the CD-ROM media for quality, click the
article numbers below to view the articles in the Microsoft Knowledge Base:
140583 How to Configure CD-ROM Caching for Windows 95

184410 How to Use Msinfo32.exe to Optimize CD-ROM Cache Settings

141368 Poor Performance from CD-ROM-Based Program

158904 CD-ROM Benchmark Program May Not Disable Read Ahead or Caching

321641 Troubleshooting CD or DVD Read Issues

218617 How to Troubleshoot CD-ROM or DVD-ROM Read Issues

For Further Information : OFF: "Error 1304: Error Writing to the
File" When You Install Office XP or Office 2000
Microsoft Knowledge Base Article - 321339
http://support.microsoft.com/default...b;en-us;321339

Please let me know has this helped You...
Thank you...
Raghu...
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