which files are being registerd by pre-compiled NSIS installer exe

If have found a program that uses the NSIS installer.

Now I want to know what the installer in exactly doing. The installer does not show the progress bar in detail and does not produce a log file. Only a uninstall.dat

How can I make a already compiled Nsis installer exe force to produce a log of which files are being copied where and what registery keys are being added .

And the most important question which files are being registerd.

Thx

That is not possible. A compiled installer does not contain things it doesn't use.

i thought perhaps it's possible to run the installer with a commandline switch that logs or shows the install stuff ?

As I said, that is not possible. If the user interface does not provide a log window, it is not possible to show it.

there are special programs, that log all operations a installer is performing on your machine, to give the possibility to completely uninstall the programs.
search for a program doing this. there's some freeware available at big download-sites.

I used registar to find out what regkey are beeing created but is lot of work to find out and with little luck