pdp11 emulation mode

[user at pur-ee.UUCP]

	I am having a problem with some code that I need to run in pdp11
emulation mode on a Vax11/780 (4.1bsd).  The code is bombing on an
execlp() command, which fails.  Through my own testing, I have determined
that all forms of exec() will fail in emulation mode.  I do not have
access to the sources, so I cannot just recompile them on the Vax.
However, I do have access to this company, if I can come up with any
suggestions for them to try.  They have only a pdp11/44 for development
work, and they won't let the sources out of their sight/site.  According
to them, they NEED to use an exec (or something similar) to overlay the
calling process for their intended usage (database program).

	Does anyone out there know of any way to simulate or otherwise
fake an exec()??  Any suggestions will be welcome, even if you are not
sure that it will work, since I can always test them myself (the other
machine that I an using is a pdp11/45 (V7)).
	Thanks much...

	ignore the address on the header
	David Hesselberth	...!allegra!purdue!pucc-i!adr   (or)
	{harpo, decvax, ucbvax} !pur-ee!pucc-i!adr