That's okay. I didn't lose any real time. I figured out what you meant and was surprised to see the folders for both Reality Paint and Blacksmith 3d there. I deleted both. It still asks for a serial number then shuts down. It seems like more of a crash than a shutdown.

My history is that

I download the zip file from the forum here.

I unzipped the zip file into it's own folder. (Shouldn't it have installed something?)

I click on the file, 'Blacksmith3D-Launcher.exe'

Message appears on the screen 'Serial Number is invalid'

Then the Blacksmith3D 64 has stopped working...

 

Also :

Here are my specs. (don't laugh!)

AMD Athlon II X2 215 Processor 2.70Ghz

4G Ram

ATI Raedon HD 3200 Graphics

Windows 7 Home Premium 64 bit

 

I shouldn't have a problem running BS3D should I?