When working in WSS website the following iis error message will come
Service Unavailable
The issue is comming because the application pool configuration is wrong. Follow the below steps
Verify that the application pool is configured for the virtual server. The default application pool is MSSharePointPortalAppPool.
1. Start-> point to Administrative Tools -> Internet Information Services (IIS) Manager.
3. Expand ServerName, expand Web Sites, right-click the virtual server, and then
click Properties.
4. Click the Home Directory tab.The application pool that is configured for the virtual server is listed in the Application pool box.
5. Click OK.
Verify that the password for the application pool account is correct.
1. In Internet Information Services (IIS) Manager, expand Application Pools.
2. Right-click the application pool that is configured for the virtual server
(for example, right-click MSSharePointPortalAppPool), and then click
Properties.
3. Click the Identity tab.
4. In the Password box, type the password of the application pool account that
is listed in the User name box, and then click OK.
5. In the Confirm Password dialog box, type the password again, and then click
OK.
Verify that the application pool account is a member of both the IIS_WPG group and the STS_WPG group on the server
1. Click Start, point to Administrative Tools, and then click Computer Management.
Expand Local Users and Groups, and then expand Users.
2. Right-click the account that is used by the application pool for the virtual
server, and then click Properties.
3. Click the Member of tab.
4. Verify that both IIS_WPG and STS_WPG appear in the Member of list. If one or
both groups are not listed, add the IIS_WPG group, the STS_WPG group, or both
groups (as appropriate) to the list.
Restart IIS
Ref: Badge PrinterSD460SD360
