The file ydbspamguard.dll is a spamguard module for Yahoo! Online Protection from Yahoo! Inc.¬† Yahoo! Online Protection is a suite of software provided by your Internet service provider to protect your computer from online threats.¬† The suite is a set of security programs repackaged by Yahoo! and linked by a control panel.¬† The programs on your system may be different from other versions depending on what ISP you use and which version of the software you are on.
Regardless of the package, a problem with this file may indicate broken security software, which could mean your computer if vulnerable to attack.¬† You should clean your registry to fix the issue.
Every Windows computer has a database at its heart called the registry, which stores the vital information about everything installed on the computer.¬† Errors in the registry break your software.¬† When that happens, run SpeedZooka to get your registry clean again.¬† SpeedZooka is guaranteed to find every problem in your registry and fix it.¬† So try a free SpeedZooka scan now that will show you what problems your registry has.