The ia_netsc.dll file belongs to a Netscape plug-in for Internet Adventurer for OS/2 Warp. Internet Adventurer is a full-featured Internet Suite for the OS/2 Warp operating system, a cousin to Windows that uses many of the same components to run. Internet Adventurer gives a user access to a variety of Internet tools in a single application with a uniform interface, including World Wide Web, FTP, Gopher, IRC, Usenet News, eMail, and Telnet. If you are seeing errors with this file, you may have a problem in your registry. To fix the issue you should try cleaning your registry.
Every file installed on your computer has an entry in the registry that tells Windows how to find and use that file with the programs that need it. When there is an error in a registry entry, Windows may not be able to find the files needed, and your software will not work.
ZookaWare PC Cleaner is the answer to registry problems. ZookaWare PC Cleaner finds errors in the registry and fixes them to get your system running like it used to run. Try a free ZookaWare PC Cleaner scan that will tell you what problems your registry needs to have cleaned.