Windows Vista
Windows XP (Home Edition or Professional)
Windows 2000
Windows Me
Windows 98
Note: iolo's products are not guaranteed to be compatible with 64-bit operating systems, such as Windows XP x64. It is recommended that iolo Personal Firewall not be used in a 64-bit environment. 64-bit compatibility is being researched and may be included in future versions.
at least 20 MB available hard drive space
at least 128 MB RAM (256 MB or more is recommended)
at least a 400 MHz processor
Microsoft Internet Explorer 6, with Service Pack 1 or later
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