How can i convert a .msp file to .msi file.Its for depolying a patch through group policy.?

I need to install an antivirus patch to the compuuters in my domain through software deployment (OS used are Win 2003 server and Xp professional). The patch file is a .msp file. Is there any way or any software tools to convert this file to a .msi file so that I can deploy this patch.Pls help.

How can i convert a .msp file to .msi file.Its for depolying a patch through group policy.?antivirus

Network software shares (or "flats") are updated by running the following command. This command updates the software with Microsoft Software Installer (MSI):

msiexec /a path to .msi file in network image /p path to .msp file

This command replaces the necessary files on the network share and updates the .msi file for proper installation using the new components.

After you run this command, the program should be re-deployed in Active Directory to allow clients to receive the updates. To do so, use the Active Directory Users and Computers Microsoft Management Console (MMC) snap-in: 1. Right-click the domain, Organizational Unit (OU), or object with the policy that contains the deployed software, and then click Properties .

2. Click the Group Policy tab.

3. Click the policy that contains the program that was patched.

4. Click Edit to open Group Policy Editor for the deployed package.

5. Browse through the Computer Configuration or Software Settings section to the location in which the software package is deployed.

6. Right-click the deployed package in the right pane.

7. Click All Tasks .

8. Click Redeploy Application

You can also study the following MS KB article: 226936

How can i convert a .msp file to .msi file.Its for depolying a patch through group policy.?computer

You need the original .msi file:

msiexec.exe /a foo.msi /p foo.msp