System error 5 when map a drive from Vista to XP

1. Click Start, type regedit in the Start Search box, and then click regedit.exe in the Programs list.
   If you are prompted for an administrator password, type your password. Or, if you are prompted for confirmation, click Continue.
2. Locate and then click the following registry subkey:

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

3. If the LocalAccountTokenFilterPolicy registry entry does not exist, follow these steps:
   1. On the Edit menu, point to New, and then click DWORD Value.
   2. Type LocalAccountTokenFilterPolicy, and then press ENTER.
4. Right-click LocalAccountTokenFilterPolicy, and then click Modify.
5. In the Value data box, type 1, and then click OK.
6. Exit Registry Editor.

Automatic Fix: MS Fixit

Cannot Start MS Office Outlook - invalid XML.

Start outlook with the /resetnavpane switch. At start menu, run, type outlook.exe /resetnavpane