File Sharing in Windows Vista

I have been having a problem with sharing files from Windows Vista. The problem occurs when I try to access the shared folder form other PCs running earlier versions of Windows with the default Guest account. After searching around I found out that Guest accounts in Windows Vista are denied by default from accessing Network shares. There are two ways to fix this thing:

• Don't use the Guest account for sharing. Make another user account with no password and use that for public file sharing. More secure but you'll need to distribute the new username.
• Change the Local Security Policy settings to enable Guest to access network shares as follows:
  
1. Go to Control Panel > Administrative Tools > Local Security Policy.
2. Expand Local Policies > User Rights Assignments.
3. Double click on Deny access to this computer from the network.
4. Select Guest and click Remove. (See pictures below)