exchange infromation store won't start

do you have a physical drive on the server called "M:"
it looks like the problem is that it can't find hdd M,
can you navigate to 'M:\autobinnenmaas.nl\Public Folders' and does it contain data?
if it is there, I would check the permissions on the folder to make sure they haven't been changed and that is why the w3svc cant start

Let me know

Thanks
~Dan

Have you seen these links:

 http://support.microsoft.com/kb/259373
 http://support.microsoft.com/kb/283179
 
Sometimes these problems are caused by AV software. I would at the very least disable any AV software and see if that helps. Also see:

 http://www.msexchange.org/articles/Properly-Configure-file-system-antivirus-Exchange.html

I don't see the M: drive. And i dont know how to restore that. The virusscanner is not enabled at the moment.

Problem is solved.  
Thanks for your advice
This was the solution:

Verify the default domain controllers policy. To do this, follow these steps:a.  Start the Active Directory Users and Computers snap-in.
b.  Right-click the Domain Controllers container, and then click Properties.
c.  Click the Group Policy tab, and then make sure that Default Domain Controllers Policy is listed in the Group Policy Object Links box.

Note If Default Domain Controllers Policy is not listed, click Add, click Default Domain Controllers Policy, and then click OK. Then, wait for this change to replicate to all other domain controllers.
d.  Run the setup /domainprep command from the Exchange Server CD or from a network installation point. The setup /domainprep command adds the Exchange Enterprise Servers group to the domain that has default permissions.
e.  Run Policytest.exe. Note which domain controllers return the following successful result:
Right found: "SeSecurityPrivilege"
If all domain controllers have the correct permissions, restart the Exchange Server services. If some domain controllers do not have the correct permissions, go to step 4.
 
4. Manually add permissions to the domain controller. The File Replication service (FRS) may not replicate the updated security policy to one or more domain controllers after you run the setup /domainprep command. If this problem occurs, you must manually assign the correct permissions to the Exchange Enterprise Servers group. If some domain controllers or all domain controllers do not have the correct permissions, assign the "Manage auditing and security log" permission to the Exchange Enterprise Servers group. Then, wait for the setting to replicate to the other domain controllers. To do this, follow these steps: a.  Start the Active Directory Users and Computers snap-in.
b.  Right-click the Domain Controllers container, and then click Properties.
c.  Click the Group Policy tab, click Default Domain Controllers Policy in the Group Policy Object Links box, and then click Edit.
d.  Expand Computer Configuration, expand Windows Settings, expand Security Settings, expand Local Policies, and then click User Rights Assignment.
e.  In the right pane, double-click Manage auditing and security log, click Add, click Browse, and then add the Exchange Enterprise Servers group.
f.  In the Add user or group dialog box, click OK. Then, click OK.
g.  Quit the Group Policy snap-in, and then click OK in the Domain Controllers Properties dialog box.