The name of the library stands for RexxMustHave:
the library is a set of functions I think ARexx
macros should have.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
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[generic]                 1737    2838  61.2% -lh5- 00c8 Oct 27  2004 RMH.info
[generic]                 3629    5912  61.4% -lh5- e37a Oct 27  2004 RMH/C/RxHelp
[generic]                  260     400  65.0% -lh5- f8c3 Oct 27  2004 RMH/Catalogs/français/rmh.catalog
[generic]                  248     390  63.6% -lh5- 1437 Oct 27  2004 RMH/Catalogs/italiano/rmh.catalog
[generic]                  361     648  55.7% -lh5- 9200 Oct 27  2004 RMH/Catalogs/italiano/RxHelp.catalog
[generic]                 1501    2334  64.3% -lh5- 17e6 Oct 27  2004 RMH/Docs.info
[generic]                 1066    2861  37.3% -lh5- a7a7 Dec 19 17:53 RMH/Docs/Changes
[generic]                 1504    2334  64.4% -lh5- 59af Oct 27  2004 RMH/Docs/English.info
[generic]                30853  122383  25.2% -lh5- 1add Dec 19 17:53 RMH/Docs/English/RMH.guide
[generic]                 1556    2249  69.2% -lh5- 6337 Oct 27  2004 RMH/Docs/English/RMH.guide.info
[generic]                 1505    3965  38.0% -lh5- e97e Oct 27  2004 RMH/Docs/English/RxHelp.guide
[generic]                 1556    2249  69.2% -lh5- 2968 Oct 27  2004 RMH/Docs/English/RxHelp.guide.info
[generic]                  487    1238  39.3% -lh5- 04f5 Oct 27  2004 RMH/Examples/ai.rexx
[generic]                  204     365  55.9% -lh5- d2cc Oct 27  2004 RMH/Examples/child.rexx
[generic]                  439     804  54.6% -lh5- 86a1 Oct 27  2004 RMH/Examples/clips.rexx
[generic]                  424     746  56.8% -lh5- 3691 Oct 27  2004 RMH/Examples/cx.rexx
[generic]                  402     673  59.7% -lh5- 1f4f Oct 27  2004 RMH/Examples/dtime.rexx
[generic]                  516    1130  45.7% -lh5- a91c Oct 27  2004 RMH/Examples/env.rexx
[generic]                  569    1255  45.3% -lh5- a339 Oct 27  2004 RMH/Examples/father.rexx
[generic]                  394     899  43.8% -lh5- 408f Oct 27  2004 RMH/Examples/getdate.rexx
[generic]                  491    1040  47.2% -lh5- cc09 Oct 27  2004 RMH/Examples/getfdate.rexx
[generic]                  496    1030  48.2% -lh5- ff3e Oct 27  2004 RMH/Examples/gr.rexx
[generic]                  197     291  67.7% -lh5- 40e9 Oct 27  2004 RMH/Examples/ma.rexx
[generic]                  501    1242  40.3% -lh5- 70cf Oct 30  2004 RMH/Examples/notify.rexx
[generic]                  198     343  57.7% -lh5- 2967 Oct 27  2004 RMH/Examples/nschild.rexx
[generic]                  669    1551  43.1% -lh5- 2f5e Oct 27  2004 RMH/Examples/nsfather.rexx
[generic]                  275     640  43.0% -lh5- 8b01 Oct 27  2004 RMH/Examples/pconfig.conf
[generic]                  257     402  63.9% -lh5- cd9d Oct 27  2004 RMH/Examples/pconfig.rexx
[generic]                  153     239  64.0% -lh5- b201 Oct 27  2004 RMH/Examples/pname.rexx
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[generic]                  459    1057  43.4% -lh5- d1ab Oct 27  2004 RMH/Examples/ra.rexx
[generic]                  133     166  80.1% -lh5- b921 Oct 27  2004 RMH/Examples/requester.rexx
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[generic]                  505    1306  38.7% -lh5- 2806 Oct 27  2004 RMH/Examples/sorttest.rexx
[generic]                  360     619  58.2% -lh5- 2873 Oct 27  2004 RMH/Examples/srv.rexx
[generic]                  284     523  54.3% -lh5- fc33 Oct 27  2004 RMH/Examples/stemfields.rexx
[generic]                  184     279  65.9% -lh5- ca52 Oct 27  2004 RMH/Examples/tz.rexx
[generic]                 1671    7742  21.6% -lh5- ef7a Oct 27  2004 RMH/Install
[generic]                 1587    2935  54.1% -lh5- a489 Oct 27  2004 RMH/Install.info
[generic]                29772   55400  53.7% -lh5- 243a Dec 15 21:07 RMH/Libs/rmh.library
[generic]                 5285   12456  42.4% -lh5- 8b97 Apr 13  2005 RMH/Libs/rxtoolkit.library
[generic]                  257     446  57.6% -lh5- 1283 Oct 27  2004 RMH/Localization/rmh.cd
[generic]                  262     433  60.5% -lh5- b3b5 Oct 27  2004 RMH/Localization/rmh.ct
[generic]                  324     642  50.5% -lh5- 79a0 Oct 27  2004 RMH/Localization/RxHelp.cd
[generic]                  348     670  51.9% -lh5- d5b2 Oct 27  2004 RMH/Localization/RxHelp.ct
[generic]                  171     271  63.1% -lh5- cfba Oct 27  2004 RMH/rmh.readme
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 Total        47 files   94669  248473  38.1%            Jan  3 08:05