'Excludes' in Backup Application

I have a backups application that works across all versions of windows (Win 98 upwards).
In my application it is recommended to backup only data files eg: XLS, DOC, MDB, DBF, PST etc. (excluding application, OS system files ,temp files etc).

Can I safely Exclude the <Windows> and <Program Files> folders assuming they do not contain any user entered data ?
As my program unnecessarily searches in them.
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It is possible for users to save data anywhere on their computer. I recently found Office documents in a user's windows folder.
The answer to your question is therefore no.
David Johnson, CD, MVPOwnerCommented:
1 check the special folders, do not rely on c:\users\username\documents ... and only backup them.. To get the location check the registry
User Shell Folders]user shell folders
Allan_FernandesAuthor Commented:
No doubt the user can and in my program too I will only be setting it as Default so that user can modify.
What I want to know is that if someone is following convention then it look foolish for me to go thru the folders wherein data is typically not stored.
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Allan_FernandesAuthor Commented:
Hi David Johnson,
The way we set the backup us typically

that covers all users files.
What I need is the exclusions
David Johnson, CD, MVPOwnerCommented:
program files\
program files (x86)

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Allan_FernandesAuthor Commented:
Was this seggregation present from the earlier versions?
If not then I can optimise only for the later versions.

Re-checking :
program files\
program files (x86)
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