This is from the LV 5.1 license agreement:
7. DISTRIBUTION RIGHTS.
(A) Generally. For SOFTWARE not listed in 7(B) below, you may
distribute your application (.exe, .dll, html, .alx, etc.) created
with such SOFTWARE and/or utilizing relevant configuration utility
executables (i.e., NI-DAQ Utility, VXIEdit, VXItedit, etc.) that are
part of such SOFTWARE without royalties or fees to NI, provided that:
(1) your application is not itself a general-purpose development tool,
function library, or component for data acquisition or instrument
control operations, user interface operations (graphs, strip charts,
gauges, meters, etc.), analysis routines, or National Instruments
TestStand( sequence files;
(2) you include the following copyright notice, either on-screen in
your application's About Box or in your application's written
documentation, with each distributed copy of your application:
Copyright (c)[yr] National Instruments Corporation. All Rights
Reserved;
(3) you do not use NI's name, logo, or trademarks to market your
software program without NI's express prior written permission;
(4) you agree to indemnify, hold harmless, and defend NI (including
its officers, directors, employees, and agents) and its suppliers from
and against any claims or lawsuits, including attorney's fees, that
arise or result from the use or distribution of your application; and
(5) if you are using Microsoft SDK files or other third party
files, you must conform to the requirements described in the
SDKLIC.TXT or the other applicable files.
(B) Run-Time License Required. If the SOFTWARE is National
Instruments SQL Toolkit, National Instruments IMAQ(TM) Vision,
National Instruments TestStand(TM), National Instruments Test
Executive, National Instruments Lookout(TM), or such other software
product as NI may from time to time designate as requiring a separate
run-time license for application execution, you may not distribute
applications (.exe, .dll, html, .alx, etc.) created with (or if
applicable, utilizing) such SOFTWARE unless: (1) the end-user of the
application has acquired a separate run-time license from National
Instruments for the applicable SOFTWARE for each computer on which the
application is used and (2) you comply with the provisions of 7(A)(1),
(2), (3), (4) and (5) above. Please contact NI or, if applicable, the
NI subsidiary serving your country for more information regarding the
current list of software requiring separate run-time licenses for
application distribution and obtaining applicable run-time licenses.
It was my belief that the only restriction on distribution was the
run-time licenses mentioned in 5B above and not for the LabVIEW
run-time. I certainly distributed a lot of different executables with
my single LV license. The LV 5.1 run-time engine is available for
download so I don't see where there are any restrictions but then I'm
not a lawyer. There was a rather lengthy discussion on A
href=http://www.info-labview.org/;info-labview/A a couple of
months back regarding the licensing of LV 7 executables and VISA so
you might want to check that out.