doPDF installs as a virtual PDF printer driver so there is no exe file to run in order to convert your documents into PDF files.
To create PDF files, you just have to print your documents to the doPDF Printer, like you would print to a normal printer. Below are some examples on how to create PDF files from various programs (the principle is the same, File->Print and select doPDF as the printer).
How to create PDF files from Microsoft Word:
- Open the Word document that you want to convert to a PDF file.
- Go to File->Print and select doPDF from the Printers combo-box.
- Click on Ok and choose a location for your PDF file.
Here is a screenshot of the above mentioned process:

How to create PDF files from Microsoft WordPad:
- Open the document that you want to convert to a PDF file.
- Go to File->Print and select doPDF from the Printers list.
- Click on Print and choose a location for the PDF.
How to create PDF files from NotePad:
- Open the NotePad document that you want to convert to a PDF file.
- Go to File->Print and select doPDF from the Printers list.
- Click on Print and choose a location for the PDF.