There are two you will find useful.
IZArc -
http://www.izarc.org/ - Will read and write most formats including LHA.
ZipZag -
http://www.zipzag.com/ - This goes much further and will read and write LHA, LZH and many other formats, plus if you add Total Commander plugins to it, ZipZag can also work with ADF, ADZ, HDF, HDZ, LZX and many more.
More info on both of this is also posted in the Off Topic/PC forum in the pinned topic
Useful free PC applications.
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