This is a little  program that unpacks lha/lzx and zip-files with a simple
double click.

Requires:
AmigaOS 2.0

And of course lha for lha-files, lzx for lzx-files and unzip for zip-files.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 7245   11556  62.7% -lh5- e5eb Jan 15  1998 ClickUp
[generic]                 1244    2955  42.1% -lh5- 7530 Mar 10  1998 ClickUp.doc
[generic]                 1337    1857  72.0% -lh5- b902 Mar 10  1998 ClickUp.doc.info
[generic]                  869    3958  22.0% -lh5- 271d Jan 15  1998 ClickUp.info
[generic]                  212     356  59.6% -lh5- 9ec7 Mar 10  1998 Clickup.readme
[generic]                  510    1396  36.5% -lh5- 248c Mar 10  1998 Clickup.readme.info
[generic]                  775     993  78.0% -lh5- bcf1 Mar 10  1998 def_archive.info
[generic]                  763     995  76.7% -lh5- d645 Jan 15  1998 def_lzx.info
[generic]                  765     988  77.4% -lh5- 26bf Jan 15  1998 Def_zip.info
[generic]                 2621    2621 100.0% -lh0- 72e7 Nov  1  1994 TEXT.lha
[generic]                  771     990  77.9% -lh5- 00ec Jan 15  1998 TEXT.lha.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        11 files   17112   28665  59.7%            Mar 12  1998