iviregmgr.exe is a RegMgr Module from InterVideo belonging to IviRegMgr Module. iviRegMgr.exe is located in a subfolder of "C:\Program Files\Common Files. The file size on Windows XP is 112,152 bytes and the program is not visible. File iviRegMgr.exe is a Verisign signed file and is digitally signed.
The file is not a Windows core file so you can uninstall this program in the control panel.