Ownership in Windows 2003, Part II

As administrator take ownership of the complete foldertree first. 
Start -execute
cmd
(Run As Administrator)
- Change location to the folder you need access to
e.g.:
E:
cd e:\OSL
- Type: takeown /F . /R /A /D Y > NUL
- Type: icacls . /grant Administrator:(OI)(CI)(F) /T /Q
- Type: icacls . /grant oscar:(OI)(CI)(F) /T /Q
Afterwards you will be able to change the access rights using cacls or xcacls.
http://programmerstools.hubpages.com/hub/xcacls
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Unix/linux correspondance to windows
chmod is used to change access rights on files and folders for owner-group-others.
So chmod would correspond more to cacls.
And chown would correspond to takeown. 
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CACLS for windows XP
Elevation of privilege per script
Ownership of a file or folder
Denied permission to access folders
- click Start
- Type: cmd

- Right-click cmd when it appears

- Click Run As Administrator

- Change location to the folder you need access to (e.g. cd e:\folder)

- Type: takeown /F . /R /A /D Y > NUL

- Type: icacls . /grant Administrator:(OI)(CI)(F) /L /T /Q

(in other case use instead of Administrator your username - you will only have access from your

XP and Vista machine in this case)

[> is the character greater than without the ; character]

[It should be ""USER : ( O I )..." but without the spaces before and after : ]

(Or, replace USER (Administrator) with Users if you want anyone [on any computer
your hard drive is plugged into] to have full access to these files)
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other version:

I restored the primary [C:] hard drive from an old computer running Windows XP to a new one as a secondary/additional hard drive on Windows Vista, and got a "You have been denied permission to access this folder" message.

Found this page via Google. Thank you, Jimmy Brush.

Code:

Click Start
Type: cmd
Right-click cmd when it appears  and select  Run As Administrator.
Change location to the folder you need  access to  (e.g. cd e:\folder).
Type: takeown /F . /R /A /D Y > NUL
Press the Enter key and wait for the  command  to complete.
Type:  icacls . /grant users:(OI)(CI)(F) /L /T /Q
Press the Enter key.

iCacls sintax
iCACLS.exe (2003 sp2, Vista)
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CACLS: Capacidades de permisos de grupo