Some more info:
Working Episodes / games on steam:
Strong Bad all episodes: Tested and confirmed. startable
Sam & Max Season 2: all episodes are playable
Bone: both Episodes are playable
TT-TexasHoldem: tested. It is starting
Sam & Max Season 1:
Episode 1 (Culture Shock): Tested and confirmed. startable
Episode 2 (Situation:Comedy): Tested and confirmed. startable
interesting: in my backup the .exe-files have the same name as in the current version. sammax101.exe and sammax102.exe
Not playable:
Episode 3 (Mole, Mob & Meatball): Tested and confirmed: Not playable
.exe-files in folder: SamMax103.exe, testapp.exe (both 6.26 mb)
files in Pack-folder: 1758 (213 mb)
my backup-files:
.exe:
SamMax103_drm.exe, testapp_drm.exe (both 5.71 mb)
files in Pack-folder:
1759 (212 mb)
Episode 4: (Abe Lincoln Must die): Tested and confirmed: Not playable
.exe-files in folder: SamMax104.exe, testapp.exe (both 6.26 mb)
files in Pack-folder: 2588 (255 mb)
my backup:
.exe:
SamMax104_drm.exe, testapp_drm.exe (both 5.71)
files in Pack-folder:
2589 (254 mb)
Version on telltale.com: tested. The game does start.
The .exe produces an error when used with the steam-version.
files: 2590 264MB
Missing files in Steam-version: ttg_splash_b_gt.d3dtx, ttg_splash_c_ttg.d3dtx and of course the aSamMax104_english_browser.ttarch.
Interesting file size-difference: SamMax104_english.ttarch: 221mb [Telltale] 213mb [Steam]
Swapping these 2 files has no effect on the problem.
Episode 5: (reality 2.0): tested and confirmed: not playable
.exe-files in folder: SamMax105.exe, testapp.exe (both 6.26 mb)
files in Pack-folder: 2218 (199 mb)
my backup:
.exe:
SamMax105_drm.exe, testapp_drm.exe (both 5.71 mb)
files in Pack-folder:
2219 (198 mb)
Episode 6: (bright side of the moon): tested and confirmed. Not startable
.exe-files in folder: SamMax106.exe, testapp.exe (both 6.27 mb)
files in Pack-folder: 2037 (235 mb)
my backup:
.exe:
SamMax106_drm.exe, testapp_drm.exe (both 5.71 mb)
files in Pack-folder:
2038 (234 mb)
The Error:
When I try to start the games steam is loading but before the game can start there is a steam-error-message:
The error also appears when I try to start the games with the executables outside steam wether steam is running at the time or not makes no difference.
Things I am planning:
3. testing if the old executeables would fix this error
done: this will not help with the error
4. Testing if 104Abe from this site will run/start and if it's .exe will start the games
The game runs but it's .exe will not help with the steam version unless some big files are swapped.