Microsoft Visual C++ 2005 SP1 Redistributable Package (x64) is update released by Microsoft for Visual C++ 2005 edition. Service Pack 1 is the first released version which offers all kinds of bug fixes and up-gradation of this Visual C++ programming IDE. This Redistributable package can distribute easily without any legal barrier or limitations. Anyone can download this package and install on any machine having Visual C++ original authenticated version. Usual Service Pack gets downloaded and updated automatically, but this version come as a MSI installer package which can be downloaded and used and normal software installer. This specific version is designed for x64 or 64 bit Processor and Operating System.