anyway, your installer works fine here, got a few suggestions...
1. finish text doesn't always show up (the program just exits after installation, is it linked to actually running something when ending? if so, it would be better if the finish text would always show)
2. the 'install window' that shows the installation progress displays some empty lines, would look a little better without those lines

3. when canceled (closed) , the installer still tries to run a program specified
4. a cancel button
in the past there were some problems with this installer under windows nt, does that work now?