[TYPO3-english] Custom extension gets loaded in v4.2.x but not in v4.3.1

[jochem nabuurs]

Dmitry Dulepov wrote:
> Hi!
> 
> On 2010-02-17 12:51:40 +0200, jochem nabuurs said:
>> The userFunc isn't called. I've had to manually include the script by 
>> placing the following snippet inside the static template of my extension:
>>
>> includeLibs.roqlightbox = 
>> EXT:roq_lightbox/pi1/class.tx_roqlightbox_pi1.php
> 
> This is correct. You must do that to get your file loaded.
> 
>> I can't imagine why this is necessary. The file should be loaded 
>> because it is an installed extension.
> 
> No, it shouldn't. It gets included only if you call appropriate TYPO3 
> functions from t3lib_extMgm or have static TS that loads the file.
> 

Thanks for your reply (and Joey too)... It makes sense now.
I've found a post on this topic on the TYPO3-dev mailinglist:

http://lists.typo3.org/pipermail/typo3-dev/2009-July/036121.html

Might come in handy for other readers of this thread.

Kind regards,

Jochem