Upon installing  Sharepoint Server 2007 standard or Enterprise it came up with an error : This program is blocked due to compatibility issues Follow the steps: 1. Download and install : Windows SharePoint Services 3.0 with Service Pack 1 32 Bit Version or Windows SharePoint Services 3.0 with Service Pack 64 bit Version Depending on your Server install 2. Download : 2007 Microsoft Office Servers Service Pack 1 (SP1) Copy it to c:\temp folder. 3. Extract this exe. To do so, run this command from command prompt: c:\temp\Officeserver2007sp1-kb936984-x86-fullfile-en-us.exe /extract:c:\temp1 This extracts the installation contents into folder c:\temp1 <– For 32 Bit c:\temp\officeserver2007sp1-kb936984-x64-fullfile-en-us /extract:c:\temp1 This extracts the installation contents into folder c:\temp1 <– For 64 Bit Copy the Contents of the Sharepoint Server 2007 Installation Files to C:\SharepointServer2007\ 4. Copy all the contents of c:\temp1 into “C:\SharepointServer2007\(x86 or x64)\Updates” 5. Run Setup .exe again