Now I come back, and try to run set-up and get this screen:
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When I looked into the Control Panel > Add/Remove Programs, I found Fruit Machine Emulator there. I tried to remove it and it said "Could not load initialization file". I gathered this is because I deleted the uninstall file a while ago along with everything else in the folder. So I google it to remove a key from the registry which has removed Fruit Machine Emulator from the Add/Remove Programs list. However, I still get the message in the above picture when trying to run the setup file. I believe I must track down all registry values/keys/strings in order to be able to run the setup file.
Thanks.