[TYPO3] problems updating to T3 4 beta2

[Diederik van Veen]

forgot to mention that if i go to install tool to "Update the database 
structure" and "Import the static tables"., all i get is a blank page with 
the message:

Warning: 
main(C:/apache/htdocs/quickstart/typo3/ext/install/mod/class.tx_install.php): 
failed to open stream: No such file or directory in 
C:\apache\htdocs\quickstart\typo3\init.php on line 222

Fatal error: main(): Failed opening required 
'C:/apache/htdocs/quickstart/typo3/ext/install/mod/class.tx_install.php' 
(include_path='.;C:\apache\php\pear\') in 
C:\apache\htdocs\quickstart\typo3\init.php on line 222

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