Curiosity question

#1
I observed that many files, e.g., shralias.exe and onig.dll, in the TCCLE distribution differ from the corresponding files in the TCMDLE distribution. I understand they would be different from the TCMD (full featured) distribution, but I am curious why they are not the same in the two LE distributions? Is there any usage difference between the two distributions when used without TCMD?
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Steve