Add punctuation: A king was simply a leading magnate who the other magnates regarded as first among equals
A: A king was simply a leading magnate, who the other magnates regarded as "first among equals".

Add punctuation: ulibdll file fixer DLL Suite can perfectly fix ulibdll missing in Windows 78XPVista Besides ulibdll errors always come along with Registry problem so that we highly recommend you install MaxUtilities for register issue
A: ulib.dll file fixer - DLL Suite can perfectly fix ulib.dll missing in Windows 7/8/XP/Vista. Besides, ulib.dll errors always come along with Registry problem so that we highly recommend you install MaxUtilities for register issue.

Add punctuation: Not only will that be bad news for commercial LMS vendors it will be bad news for companies like Rustici who will still have a great product but a shrinking customer base Of course it will be great news for everyone else
A:
Not only will that be bad news for commercial LMS vendors, it will be bad news for companies like Rustici who will still have a great product, but a shrinking customer base. Of course, it will be great news for everyone else.