First, create backups of the files you want to monitor and store the copies in a safe place. Next, start System File Checker by choosing StartûProgramsûAccessoriesû System ToolsûSystem Information. In the System Information window, choose ToolsûSystem File Checker. To add the files you want to monitor, click Settings. On the Settings tab, select the options that fit your needs ù for example, you'll probably want to leave Check for changed files and Check for deleted files selected. If you would like to be able to scan a separate set of files (such as templates) without scanning all your system files, click the Advanced tab and click Create. Select a location and type a name for your new .sfc file. This is a listing of the files you want to keep an eye on. Click Save.

Caption: Check for changes to all your sensitive documents by using Windows 98's System File Checker

Now click the Search Criteria tab. Click Add Folder and select a folder that contains files you want to watch. Click OK. If you want to monitor all the files in a folder's subfolders, make sure the larger folder is selected, and click Include Subfolders. Repeat to add other folders.

Next, specify the type of files that you want to monitor. Click Add Type, type a file specification, such as *.dot, and then click OK. For a more specific file selection, click Add Type, type a complete file name (such as salesrpt.xlt), and click OK. Repeat this process for additional file names or specifications. If you change your mind, select the item from the list and click Remove. Click OK, then click Close twice, and you're done.

To check your files, start System File Checker and click Settings. Click the Advanced tab and choose your custom .sfc file from the File name drop-down list. Click OK, then click Start. If the utility finds a discrepancy, you'll be given a number of choices. If you recently modified the files or approved recent changes, select Update verification information or Update verification information for all changed files. System File Checker will thenceforth consider the current versions officially acceptable. If you choose the Restore option, you'll get a chance to store the changed version in a backup folder in case you later change your mind.