Dallas Hinton:

DH> However,  in  formal  English,  effect is also used as a
DH> verb meaning "get done, bring  about":  he  effected  an
DH> improvement in the working conditions. Thus, to affect a
DH> proposal means to influence it or make a change  in  it,
DH> while to effect a proposal means to get it done or bring
DH> it to completion.

Example -- my   program   `pamlevels'   is   advertised   as
"effecting"  a levels transformation with the possibility to
preserve color integrity:

  http://netpbm.sourceforge.net/doc/pamlevels.html

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