Dynamic Loading of C programs

[Scott L. Vandenberg]

Does anyone know of a portable, easy-to-use dynamic loader for C programs?
We've had experience with the "-A" option of the UNIX "ld" command, but
are looking for something a little friendlier.  Is there any public-domain
dynamic loading software out there?  

Also, if you have any experience with actually using such a beast, how much
has it improved things over what you did previously?

Please respond via e-mail; I don't read these newsgroups frequently.
Thanks!

--
@              Scott L. Vandenberg (scottv at cs.wisc.edu)              @
@    University of Wisconsin-Madison Computer Sciences Department    @
@ 1210 West Dayton Street, Madison, Wisconsin  53706   (608)262-6623 @