program modification: sometimes, not only virus trojandownloader:autoit/agent.a or malware registry crawler but also common softwares possessing the ability to modify the inner functions of findnetprinters.dll, which means other programs can't find this dll file again.

How would the previous sentence be correctly capitalized?
Answer: Program Modification: Sometimes, not only virus TrojanDownloader:AutoIt/Agent.A or malware Registry Crawler but also common softwares possessing the ability to modify the inner functions of findnetprinters.dll, which means other programs can't find this DLL file again.
other bbcos - hair special products

How would the previous sentence be correctly capitalized?
Answer: Other BBCOS - Hair Special Products
separation of other plastic packaging from industry must also be increased.

How would the previous sentence be correctly capitalized?
Answer: Separation of other plastic packaging from industry must also be increased.
the proletariat does not cease the class struggle after it has captured political power, but continues it until classes are abolished -- of course, under different circumstances, in different form and by different means.

How would the previous sentence be correctly capitalized?
Answer: The proletariat does not cease the class struggle after it has captured political power, but continues it until classes are abolished -- of course, under different circumstances, in different form and by different means.