InstallSheild - Get around passwords...

I have an installer here, which I desperately need the password removed.

Anyone any idea's how I can decompile or detect the password the file holds, or remove just the files and bypass the password.

Cheers...

and why is that?

long story...

I have a file which should be registered in order to use it! Registration is free, but I don't fancy being spammed by them.

Any idea's?

I've closed this thread because it's not allowed by the AUP.