InstallScript Parse error; Unsupported “Registry” entry type dword

Hi,
The error message "InstallScript Parse error; Unsupported “Registry” entry type dword" continuously come when I tried to install a new program, such as Office. I don't know why but may be due to virus problem or installation of Mafia game. I wish to overcome from this worst situation. Please help me to solve the problem.
InstallScript Parse error
Thanks,
Samuel
