Please capitalize where necessary: winrar has excellent compression ratio, better compaction of files, reduced time for compression and many other.
A: WinRAR has excellent compression ratio, better compaction of files, reduced time for compression and many other.

Please capitalize where necessary: sapi.dll program freezing and system crashing: important system components such as spbcd.dll and spsreng.dll become abnormal.
A: sapi.dll program freezing and system crashing: Important system components such as spbcd.dll and spsreng.dll become abnormal.

Please capitalize where necessary: inflammation of the pancreas in dogs
A: Inflammation of the pancreas in dogs

Please capitalize where necessary: the structure and effectiveness of these rules vary considerably, however.
A:
The structure and effectiveness of these rules vary considerably, however.