I tried it the way you told me but it did not work.
first I created the followind folder tree:
Hannibal/scen0000/german/gamedata
using my alexander scenario as model. Than i put in the folder german/gamedata the following files:
Civ_str
Feat_str
GI_str
Great_li

(The problem is also that when I downloaded the Hannibal scenario from the Apolyton site I just got the files without the folder so that I first had to try to figure out what folder I need and what to put in them.)

Annyway when I then started I still got my crash with following 2 error messages:

CTP2 verursachte einen Fehler durch eine ungültige Seite
in Modul bei 0000:86b156fc.
Register:
EAX=86b1dc81 CS=015f EIP=86b156fc EFLGS=00010282
EBX=00e71060 SS=0167 ESP=00d4fcf0 EBP=00d4fd1c
ECX=86b15086 DS=0167 ESI=00eff1c0 FS=4cf7
EDX=00000019 ES=0167 EDI=00eff330 GS=0000
Bytes bei CS:EIP:
32 04 00 a0 28 00 00 00 64 00 00 00 64 00 00 00
Stapelwerte:
00eff1c0 e886b18c 00608b1b 86b156d0 00000000 00eff1c0 00d4fd18 00eff1c0 00d4fd30 0079af56 00000001 00d4fd3c 00623055 00000000 00eff1c0 00eff1c0

DDHELP verursachte einen Fehler durch eine ungültige Seite
in Modul KERNEL32.DLL bei 015f:bff7a195.
Register:
EAX=000006fc CS=015f EIP=bff7a195 EFLGS=00010206
EBX=86b22da4 SS=0167 ESP=00fafc38 EBP=86b22da0
ECX=00000030 DS=0167 ESI=86b22d6c FS=6a8f
EDX=86b156cc ES=0167 EDI=00000038 GS=0000
Bytes bei CS:EIP:
8b 08 81 e1 fc ff ff 0f 3b cf 73 04 85 c9 75 eb
Stapelwerte:
00fafc6c 86b22d6c 86b15000 00000000 bff7b30e 86b15000 86b22d6c 0000001c 00000200 86c1623c 86b24604 00000000 86b22d6c 00fafd38 baac8b33 86b15000

To decompress *.zip files I use winzip.exe oder winrar.exe usually. I hadn't any problems to install the scenario, because the folder structure is saved in the *.zip file. Now here is the list of the files:

These files go to the ..\Scenarios\hann_spqr2\ directory:

Book1.xls
packicon.tga
packlist.txt
Spqr
SPQR README.TXT
spqr.jpg
Thumnail for Omni.txt

These files go to the ..\Scenarios\hann_spqr2\scen0000\ directory:

savegame.c2g
scenario.txt
turnlength.txt

These files go to the ..\Scenarios\hann_spqr2\scen0000\default\aidata\ directory:

AdvanceLists.txt
Goals.txt
personalities.txt
strategies.txt
UnitBuildLists.txt

These files go to the ..\Scenarios\hann_spqr2\scen0000\default\gamedata\ directory:

Advance.txt
AdvanceLists.txt
age.txt
Agecitystyle.txt
buildings.txt
cityid.txt
citysize0.txt
citysize1.txt
citysize2.txt
citysize3.txt
citysize4.txt
citysize5.txt
citystyle.txt
civilisation.txt
concept.txt
Const.txt
DiffDB.txt
feat.txt
feats.slc
goods.txt
goodsID.txt
govern.txt
newsprite.txt
Pop.txt
risks.txt
scenario.slc
terrain.txt
tileimp.txt
uniticon.txt
Units.txt
Wonder.txt

All *.tga files go to the ..\Scenarios\hann_spqr2\scen0000\default\graphics\pictures directory.

All *.spr files go to the ..\Scenarios\hann_spqr2\scen0000\default\graphics\sprites directory.

These files go to the ..\Scenarios\hann_spqr2\scen0000\german\gamedata\ dirctory:

civ_str.txt
feat_str.txt
gl_str.txt
Great_Library.txt

By the way you can also use the standart directories tas a model for rebuilding the folder structure.

Just for the record, I wanted to tell How the problem was finaly resolved.
In fact the problem layed with my old unzip program withj was unable to handle the folder tree accuratly.
With the latest version of winzip, I unzip the scenario files again and then it worked without problem.

Thank everyone