Install already decompressed app

[asklucas]

Hi there,

how do I install an app, which doesn't have an installer and is
downloaded as executable, not zip?

Example:
[GPU-Z]

category = System:System Information
describe = Graphics System Information
website = http://www.techpowerup.com/gpuz/
scrape = http://www.techpowerup.com/downloads/1379/TechPowerUp_GPU-Z_v0.3.4.html
version = GPU-Z.([0-9]\.[0-9]\.[0-9]).exe
download = http://www.techpowerup.com/downloads/1379e/
filename = GPU-Z.#VERSION#.exe
installer = copy-exe.bat
instparam = "#INSTALL_DIR#" GPU-Z*.exe
upgrades = false

Couldn't get it running. For installation, it should simply create the
directory for GPU-Z and copy the exe there. The parameter
preinstall =
in db.ini seems to not be parsed.

Any suggestions?

Ciao,
L.

[asklucas]

EDIT:
what I would like to run is:

cmd.exe /c "mkdir '#INSTALL_DIR#' && copy /y GPU-Z.#VERSION#.exe
'#INSTALL_DIR#'"