Bento, it looks like you responded to this post and then the responses disappeared. Did you delete them?
On what OS are you trying to install and what is the exact name of the installer file that you are trying to run?
I would recommend that you uninstall both Visual COBOL and then the Micro Focus License Manager using Control Panel.
Then delete the files
Lservrc.stn
Lservrc.net
They should be found in:
C:\ProgramData\Micro Focus - on Windows 7+
C:\Documents and Settings\All Users\Application Data\Micro Focus - on XP
Then reinstall the Visual COBOL product.