Thread:Project:Support desk/wfShellExec() causes web-installer (and possibly more) to hang in 1.23.3

Greetings,

we've been having this problem ever since 1.23.0 came out, that we cannot upgrade our software any further than 1.22, due to the rewritten version of wfShellExec, that causes a weird bug, that seems to be somewhat unique to our provider Hosteurope. This seems to be an error with their PHP-Version, but one they are unwilling to fix.

What happens is that after entering the upgrade key, the installer hangs and never finishes loading while doing all those checks. We've narrowed down the problem to wfShellExec with systematic commenting of the source code. Extracting the offending code, we even got to see an error message. Here is it: http://slexy.org/view/s2frnrvJCP The PHP Version: http://www.hosteurope-infos.de/phpinfo.php

Now my question is: Can I safely replace wfShellExec with its version from 1.22 or are there any other ideas to solve the problem? Switching the provider is unfortunately not an option.

Any help would be greatly appreciated.