IconSpy will show you any attempts to load icon and find TOOL TYPES. Vary handy
to find missing tool types when program doesn't want to run. Requires at least
KS2.04

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  546    1188  46.0% -lh5- b2a4 Oct 27  1994 IconSpy.info
[generic]                 1850    3000  61.7% -lh5- af88 Oct 27  1994 IconSpy/IconSpy
[generic]                 2373    5030  47.2% -lh5- 634a Oct 27  1994 IconSpy/IconSpy.doc
[generic]                  578    1499  38.6% -lh5- 0ce9 Oct 27  1994 IconSpy/IconSpy.doc.info
[generic]                  934    1599  58.4% -lh5- 7b75 Oct 27  1994 IconSpy/IconSpy.info
[generic]                 5140   16507  31.1% -lh5- 1e2f Oct 27  1994 IconSpy/src/IconSpy.s
[generic]                  989    2577  38.4% -lh5- 825d Oct 27  1994 IconSpy/src/include/gcmacros.i
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         7 files   12410   31400  39.5%            Nov 30  1994