Visual Studio 2005 SP1 Install on Windows Server 2003 Error Code: 0x643

Problem:

Visual Studio 2005 SP1 installation on Window Server fails with error code 0x643.

Solution:

1. Go to Start -> Programs -> Administrative Tools
2. Double-click Local Security Policy.
3. Click Software Restriction Policies.

If no software restrictions are listed, right-click Software Restriction Policies, and then click Create New Policy.

4. Under Object Type, double-click Enforcement.
5. Click All users except local administrators, and then click OK.

6. Set registry:

HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers - PolicyScope, change setting from 0 to 1.