ICF

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ICF

(Internet Connection Firewall) The built-in firewall in Windows XP. It provides a stateful inspection of packets which accepts only responses to requests originated by the user. This will prevent outside requests for data from entering the computer, unless specifically allowed by the user. However, spyware programs are often clandestinely installed in a user's computer which then make seemingly legitimate requests that a stateful firewall will allow responses to.

To turn on ICF, go to the Network Connections control panel and right click the connection (on the right side) that you want to protect. Select Properties, then the Advanced tab and check "Protect my computer..."

In the 2004 release of Service Pack 2 for Windows XP, Microsoft enhanced ICF and renamed it Windows Firewall. Unlike ICF, Windows Firewall is turned on by default. See firewall. See also IFC.
References in periodicals archive ?
Effect of age on the association between p16CDKN2A methylation and DNMT3B polymorphism in head and neck carcinoma and patient survival.
Alterations in the expression of genes (MEG3, DNMT1, DNMT3A, DNMT3B, p53, and HOTAIR) after 48 h exposure to DNC (Fig.
DNMT3B expression might contribute to CpG island methylator phenotype in colorectal cancer.
Therefore, we investigated the association between DNMT3B genotype and the risk of breast cancer incidence among sporadic breast cancer patients in Fars Province, Southern Iran.
Se han encontrado mutaciones en el gen DNMT3B en individuos con una rara enfermedad genetica denominada sindrome ICF (inmunodeficiencia, inestabilidad centromerica y anomalias faciales), relacionado con hipometilacion de ADN satelite y descondensacion cromosomica especifica (20).
The de novo DNA methytransferases DNMT3A and DNMT3B, as well as the co-factor DNMT3L, are major players in the general mechanisms underlying DNA methylation, (72-75) but the locus specificity is not explained by this alone.
DNMT3A and DNMT3B are involved in de novo methylation, whereas DNMT1 maintains hemimethylated DNA during replication.
The DNMT3B DNA methyltransferase gene is mutated in the ICF immunodeficiency syndrome.
The methylation of CpG sites within the human genome is catalyzed by four well-documented DNA methyltransferases (DNMTs) named DNMT1, DNMT2, DNMT3A and DNMT3B (28).
86) DNMT3A-R882H mutant lacks the DNA methyl transferase activity but still binds the wild-type DNMT3A and DNMT3B, suggesting that R882H is a dominant-negative mutant.
Two hundred seventy-seven SNPs (single-nucleotide polymorphisms) within the range of 20 kb up- or downstream of the following genes were genotyped: DNMT1, DNMT3A, DNMT3B, DNMT3L, TET1, TET2, TET3, TDG using the Illumina HumanHap550, HumanHap550-Duo or Human610-Quad BeadChip microarrays as described previously (Torgerson et al.