What is a .cab file?
link here
Microsoft Corporation
From Gateway support
This is the Windows XP sound driver for the Gateway notebook computer models listed in the Applicable Part Numbers section below.
Installation
1. The necessary files extract to the C:\Cabs folder and create a sub-folder using the name of the driver part number.
2. From the Start menu, click Run. In the Run dialog box, type: C:\Cabs\D00377-002-001\Setup.exe. Click OK.
3. Follow all onscreen instructions to complete the installation.
Removal
1. From the Start menu, point to Settings, and then click Control Panel.
2. With Control Panel in Category View, double-click Performance and Maintenance
3. In the Performance and Maintenance window, click System.
4. In the System Properties window, click the Hardware tab, and then click Device Manager.
5. In Device Manager, click the plus sign (+) in front of the type of device you want to remove the drivers from, and then double-click the specific device to open the Properties dialog box.
6. In the Properties dialog box, click the Driver tab, and then click Uninstall.
7. In the Confirm Device Removal dialog box, click OK.
Troubleshooting
If you are having difficulty during or after the driver installation, download the file again, and then perform the installation steps for a second time.
Reason for Update
This is the initial release of the driver.
Basically-- you download those files to an easy-to-find location
(I create a folder on my desktop called "downloads")
the you go to start/run-- in the run dialog you type or copy/paste this EXACT phrase:
C:\Cabs\D00377-002-001\Setup.exe
windows will probably put up an error message saying "file not found"--no worries
click ok-- then in the bottom of the run dialog --click "browse" this will open a dialog box with "look in" at the top. Under that dropdown menu-- go to C:\downloads ---find the downloaded driver files-- and double click it. This tells windows where to find the right files. hit enter-- you should be done...