You can still purchase a copy of LM90 from GE Fanuc, but it is priced at over $1200 (yes, for an old DOS-based program).   You can get a copy of 'Proficy Machine Edition PLC Standard' that will program everything from 90-30's on down for less than $500.   You can go online and upload the ladder from the PLC's; but you will not have ANY instruction names or rung comments.   These were all stored in the program file from the LM90.  But at least you will have the working code.  I guess the only reason you would want to purchase the LM90 software is if you had a really old laptop that was running Windows 95 or something like that. 

Admin wrote You mean there is no upgrade conversion or import to get the LM90 stuff into Proficy???  I would contact GE and see if they can help retrieve the old documentation at least.  Maybe print to a pdf or something?  I dont think I have have tried that with a DOS program...

You can import an entire LM90 program into Proficy Machine Edition and retain all documentation.  I think the original poster does not have a copy of the program OR the LM90 software.  All he can do is upload from the PLC.  In this case he won't have any documentation; it is not stored in the 90-30 PLC.

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