Cant compare files.

I have 2 computers. One came with my engine and the other I bought from the guys at LS1 edit. They both have the same vin number, but the original is using 09360361 OS and the other is using 09361344. EFI live wont let me compare the two. Is there a workaround for this?

Also, where is it documented as to what each operating system is for?

EFILive won't compare files associated with different operating systems except for some custom OS versus the stock systems they replace. In many cases, although the tables between two OSs may be the same, some data can be located in different areas. The only work around I know of (there may be others) is to copy and paste a table from one file to another. As an alternative, you can print all the data from one file enter it into another for the other operating system and then you can do a compare.