Any issues with 1.6.2?

Hello!
I have a customer who's using an Excel application (32-bits, never adapted for 64-bits), and the developer tells his customers to download PDFCreator 1.6.2 off of his web site.

I'm not familiar with the application; this seems like a fairly old version. Are there any security issues to be concerned with? Any known vulnerabilities?

Thanks!

Jacques

Version 1.6.2 comes bundled with Adware.