install vs2005 sp1

there is a common problem while installing vs2005 sp1, if you have that, try to see the instruction below: (also you can see the release notes for lots of known issues)

Installation Issues – Windows Server 2003

Installation fails on Windows Server 2003 editions with Windows Server 2003 SP1 Installed:

The error reported is

Error 1718. File Filename was rejected by digital signature policy.

This problem occurs when the computer has insufficient contiguous memory for Windows Server 2003 or Windows XP to verify that the .msi package or the .msp package is correctly signed.

To resolve this issue:

•	Refer to KB article 925336 (http://support.microsoft.com/kb/925336).