File quandry

check security settings of the file(logged in as admin)...
something like this... (pasted from win2k pro help)
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To take ownership of a file or folder
Open Windows Explorer, and then locate the file or folder you want to take ownership of.
Right-click the file or folder, click Properties, and then click the Security tab.
Click Advanced, and then click the Owner tab.
Click the new owner, and then click OK.
Notes

To open Windows Explorer, click Start,point to Programs, point to Accessories, and then click Windows Explorer.
You can change the owner of all subcontainers and objects within the tree by selecting the Replace owner on subcontainers and objects check box.
You can transfer ownershiptwo ways:
The current owner can grant the Take ownership permission to others, allowing those users to take ownership at any time.
An administrator can take ownership of any file on the computer. However, the administrator cannot transfer ownership to others. This restriction keeps the administrator accountable.

Ignore the previous posts, they didn't understand you question.

This is how to delete files that are in use:
1-Open a DOS window
2-Open Task Manager
3-Kill Explorer. If asked to shutdown Windows,
don't.
4-In DOS window, navigate tolocation of file(s)
5-Type "del {filename}" without the quotes
6-Type "explorer" without the quotes
7-Type "exit" without the quotes to close DOS
8-Close Task Mgr

Ralph

Here is the way:
When your PC boots up, hit the F8 key until it asks you how to start, choose Command Prompt (DOS). Then you can go where the file is and delete it, then restart the PC.