Just pointing out something here real quick, modalWindow is not TFS 1.0 exclusive.
It can be added in 0.3/0.4 as well, however, it's only limited to Tibia versions from 9.6(?) and up,
since that's when CipSoft implemented it into the client. So, that means you can't add it
into an 8.6 server for example. And, it's just another reason why latest client version is the best.
I did never say it is only 'limited' to TFS 1.0 or even exclusive to just that version of TFS.
But yeah, I'm not into TFS or C++ / scripting as much you are, so I'm sure your right