Microsoft Office 2007 Confirmation Code Step 30 For this, ensure you have WindowsInstaller 3.1 already installed. Or if you have the Office 2007 Enterprise VLK, you could even drop the CUSTOM.MSP file in the 'Updates' folder & setup will pick it up automatically (without any switches being used). Government information And, which includes 1 this computer, 2 this computer network, 3 all computers Home to this network Office 4 all devices and storage media attached to this network or to a computer on this network. Key in Microsoft Confirmation code 2007 and click Confirm. Microsoft Office 2007 Confirmation Code Step 3 Answers.Microsoft Office 2007 Confirmation Code Step 30.