[TYPO3-windows] Typo3 Backend 500 Server Error After Upgrading to T3 4.3.1 on Windows 2008 IIS7

[Shade]

It seems that I have managed to resolve the error.  Since the Typo3
installation was working once before with the same PHP environment etc and
the clue that it was symlink related, I continued troubleshooting and by
deleting all 3 symlinks and recreating them using the /D flag, the backend
was once again accessible.

In command prompt, I entered the following.  First we move to the root of
the site and then create the relative symlinks:

#########

C:\Users\Administrator>cd \inetpub\wwwroot

C:\inetpub\wwwroot>



C:\inetpub\wwwroot>mklink /D typo3_src typo3_src-4.3.1

symbolic link created for typo3_src <<===>> typo3_src-4.3.1




C:\inetpub\wwwroot>mklink /D typo3 typo3_src\typo3

symbolic link created for typo3 <<===>> typo3_src\typo3




C:\inetpub\wwwroot>mklink /D t3lib typo3_src\t3lib

symbolic link created for t3lib <<===>> typo3_src\t3lib

#########



I have tried deleting and recreating the symlinks before, without success,
so I am assuming that the reason it worked this time, is because I used the
relative paths instead of absolute target paths and also using the /D flag
(for directory symbolic link) instead of /J (junction).  I think when
upgrading Typo3 again, the same issue might occur, because I used to only
delete the typo3_src symlink and recreate it pointing to the latest source
files, but maybe that corrupts something and it is better to delete and
recreate all 3 symlinks in future.

Hope this clarifies for anyone else in a similar situation.


In the meantime I also created a report on the bug tracker:
>
> http://bugs.typo3.org/view.php?id=13332
>
>
>