Frequently asked questions and answers for WindowFinder Can I register using PayPal instead of eSellerate? Yes! You can pay with PayPal, and then I will send you a coupon code for "100% off". You will still need to go through the regular eSellerate registration process using this coupon code, but you will NOT have to enter a credit card number and you can enter fake information for everything else. I recommend that you enter your real email address so that eSellerate can send you an order confirmation email. I lost my order confirmation email with my serial number, can you help? Go to eSellerate's support page. Enter your email address and they will send you a detailed listing of all your orders, including all of your serial numbers. Your serial number will look something like this: WinFndr000-D85C-LJ2W-20KH-OC9F-RPF4. Once you have your serial number, check out the instructions for re-entering your serial number. I re-installed OS X. Can I re-enter my serial number for WindowFinder? Yes! It's easy: Select "Register WindowFinder..." from the WindowFinder menu. Copy your serial number from your order confirmation email and paste it into the box that says "Already registered? Enter your serial number:". If you've lost your order confirmation email from eSellerate, see the instructions for obtaining your serial number. Click the "Validate" button. You may see a warning dialog that says, "Product Activation Error. The WindowFinder registration has not been activated on this machine. Would you like to activate now?". Click the "Yes" button in this window. After the serial number is validated, click the "Close" button. I really want an application that does xyz and makes toast. You obviously acquired amazing programming skills while enduring countless hours of torture in pursuit of your Master's degree in computer science at Stanford University. Can you make this app for me? If you have a great idea for an application or web service, let me know!! I might also be available for contract or consulting work. I want to tell you how awesome you are. Where can I send my hate mail... err, I mean my fan letters? Check out the support page for contact information. For friendly, fast, reliable, and cheap web hosting, I use DreamHost. Get $60 off any hosting plan by entering this promo code at signup: keaka2 A one year plan is only $4.95 per month with this code!