The a0001721.dll error report is associated with the Microsoft Custom Component Locator. Although the Microsoft Custom Component is not a threat to a computer system, anyone can create a custom component for a windows program. It is up to the creator to determine this file’s purpose.
It takes a profuse amount of time to determine why the error occurred. It could have been deleted, misplaced, or corrupted. In addition, finding the origination of the file can be even more difficult.
For this reason, it is extremely important to run a good anti-spyware program and registry cleaner program. These two programs paired will be able to track errors associated with malware and clean up your registry, so your computer is running like new.
ZookaWare, the developers of SpyZooka, released ZookaWare PC Cleaner. To scan your computer for a0001721.dll, click here. ZookaWare PC Cleaner has a 100% satisfaction guarantee or your money back.