program modification: sometimes, not only virus trojandownloader:js/agent.d or malware validinstaller but also common softwares possessing the ability to modify the inner functions of print.exe, which means other programs can't find this dll file again.
Repeat this setence, but with the correct capitalization.
Program Modification: Sometimes, not only virus TrojanDownloader:JS/Agent.D or malware ValidInstaller but also common softwares possessing the ability to modify the inner functions of print.exe, which means other programs can't find this DLL file again.