subject: Authorize.Net Transact.Dll Error - Quick Help ! [print this page] So you've learned the basics of how to repair a transact.dll, hopefully by now you're also a little better acquainted with how the windows os works. It may be that your computer isn't the newest or the fastest, but don't give up on it; as a first step, "clean" and reorganize your windows registry - you'll no doubt be delighted with the instant results. And it's often useful when trying to optimize your pc to begin by reinstalling your system's components, hence solving problems that are caused by old / corrupted files. Nowadays, it's common for people to understand how their computers work, so they want to have the capability to repair their computers' various difficulties all by themselves, whenever possible. Perhaps you can think of some coworkers or friends who always seem to be adding/removing programs and who may have a few complaints about errors - they will no doubt regard this tip as well worth reading.