Possible to "upgrade" installations, to enable DoInstall??

[a...@abrandal.com]

Hello,

I have created an installation set, and I am trying to deploy another
setup along with it.
This setup is older, and not created in installshield 11.5

When I call DoInstall on "Setup.exe" or "Setup.inx", I get the message
"Setup cannot be run using IS_Setup.exe, try using Setup.exe".. which
is the one I am calling :-)

Are there any way to "Upgrade" the other setup to installshield 11.5
when it is
already compiled, and I dont have the source?

Best regards,
Alf