Testing multiple NSIS installations

i was testing 3 NSIS setup files. the problem is the subsequent setup uses the previous default installation directory. but if i uninstall previous setup the next setup will use the specified installation directory.

i used HM NIS Edit to create the scripts.

InstallDirRegKey does this, are you using this in your scripts?

i did a search for InstallDirRegKey and this was the only one found in the search.
(i can give links to the entire three scripts?)

Galaxian Script

InstallDir "$PROGRAMFILES\Galaxian"

InstallDirRegKey HKLM "${PRODUCT_DIR_REGKEY}" ""

Centipede Script

InstallDir "$PROGRAMFILES\Centipede"

InstallDirRegKey HKLM "${PRODUCT_DIR_REGKEY}" ""

i have a third script somewhere as well, but i would guess it is the same since i followed the same steps in HM NIS Edit to build them.

so if i install Galaxian first the default directory will be
C:\Program Files\Galaxian
but if i install Centipede next (without uninstalling Galaxian first) the default directory is
C:\Program Files\Galaxian
However if i uninstall Galaxian first then install Centipede the correct default directory will be displayed for Centipede
C:\Program Files\Centipede
and likewise with the other game.

the only editing i did to the script was to change the default icon after CreateShortCut for the desktop and start menu, so as you can guess i know very little.

[solved]

after a little searching on InstallDirRegKey i saw on a thread to put in "Install_Dir", so i edited the script to this

InstallDirRegKey HKLM "${PRODUCT_DIR_REGKEY}" "Install_Dir"

on each of my three scripts and now they install to the correct directory, regardless of what was installed before hand.

thanks for putting me in the right direction - because i was searching before i made this post, only i didn't even know what i was looking for. 🙂

PRODUCT_DIR_REGKEY should be unique for each product...