This is an example for all software:
Select tblComputers.Computername, tblComputers.Domain, tblSoftware.softwareName,
tblSoftware.softwareVersion, tblSoftware.SoftwarePublisher
From tblComputers Inner Join
tblSoftware On tblComputers.Computername = tblSoftware.ComputerName
This is only microsoft software:
Select tblComputers.Computername, tblComputers.Domain, tblSoftware.softwareName,
tblSoftware.softwareVersion, tblSoftware.SoftwarePublisher
From tblComputers Inner Join
tblSoftware On tblComputers.Computername = tblSoftware.ComputerName
Where tblSoftware.SoftwarePublisher Like '%microsoft%'