
However, if those were configured by Windows itself, you will have to register them once again. If you have installed this module manually to the application folder, it will not get affected by the updates. The only way to solve this problem is by registering the module once again. This change would also affect programs and application using the same module to communicate with the Microsoft operating system and other MS products, including MS office 2007 and MS office 2010.
#Component mscomctl ocx or one of its dependencies not correctly registered a file is update#
On the official KBÂ reference article 2264258, Microsoft cited it as a major update to fix the vulnerability under mscomm32.ocx in its last Apupdate. Most users report about facing this problem after applying latest critical security updates in Windows 7 (both x86 and 圆4), Windows Vista and Windows XP. If you have recently encountered this runtime error 339 message, it might be due to the latest changes in the mscomm32.ocx core module by Microsoft to prevent Remote code execution and data theft.

It is a necessary system file and should not be modified or deleted. Can I Delete or Remove mscomctl.ocx file? It is also one of the primary shared components used across various MS packages including MS office, and MS SQL server. It controls various modules including Progress Bar tracking, Slider status bar and TreeView controls.

It is one of the most important part of Microsoft Active X controls.
