[FLOW3-general] unlink permission denied on Windows 7 (basic installation)

[Greg]

Hi all,
i just downloaded flow3 and would like to try it out but can't get it to 
work. I read the installation manual and did everythink as described but 
get always this error:

*#1: Warning: unlink(C:/Program Files 
(x86)/Apache2.2/htdocs/flow3/Web/_Resources/Static/Packages/TYPO3.FLOW3): Permission 
denied in C:\Program Files 
(x86)\Apache2.2\htdocs\flow3\Data\Temporary\Development\Cache\Code\FLOW3_Object_Classes\TYPO3_FLOW3_Resource_Publishing_FileSystemPublishingTarget_Original.php 
line 113* (More information <http://typo3.org/go/exception/1>)

Because I'm on a Windows machine i can't set any special file 
permissions like described for unix like systems in the documentation. 
Apache is already running with the Administrator account.

Did someone got similar problems with his windows machine and flow3?! I 
can't imagine that this is a bug or that all people are working on 
mac/unix like systems :)


Thanks and regards

Greg