I've tried that tool on tales of monkey island and it's working just fine with it.
Bu it isn't working on Sam and Max Season one.
It always tells me "File prefs.prop not found." but it's defenely there.
Hope someone can help me.
Make sure that TTRes.exe is run from the game directory where the prefs.prop file is such as:
C:Program FilesTelltale GamesSam and Max - Season OneEpisode 101 - Culture Shock
C:Program FilesTelltale GamesSam and Max - Season OneEpisode 102 - Situation Comedy
C:Program FilesTelltale GamesSam and Max - Season OneEpisode 103 - The Mole, The Mob, and the Meatball
C:Program FilesTelltale GamesSam and Max - Season OneEpisode 104 - Abe Lincoln Must Die
C:Program FilesTelltale GamesSam and Max - Season OneEpisode 105 - Reality 2.0
C:Program FilesTelltale GamesSam and Max - Season OneEpisode 106 - Bright Side of the Moon
If the program is saying "File prefs.prop not found." Then it means just that. It can not find the file in the directory TTRes is being run from.
You may need the latest version of S&M S1 downloaded from TTG if your directories don't match the above. I'm not sure if the patcher will work with the original versions of the game before TTG updated S&M S1 to use the S2 engine.