Configuring an Environment for Apps in SharePoint 2013

Today got the chance to look into the configuration of the apps enviromnet in SP 2013.
Bellow is the reference of the configuration link.
http://community.bamboosolutions.com/blogs/sharepoint-2013/archive/2013/12/11/user-s-guide-to-configuring-an-environment-for-apps-in-sharepoint-2013-part-1-how-to-configure-the-domain-names-in-dns.aspx

Error: The path specified cannot be used at this time. (Exception from HRESULT: 0x80070094)

While creating a web application on MOSS2007 environment i have been getting this error.
I didn't find out any errors related to this in Logs file.
Finally i did two steps
1)Restart the SharePoint Timer Services
2)IIS RESET.
Still i am getting this error...
Finally restart the server...
I know the last one is actually ridiculous but it helped.(My box RAM is 1GB,2 users are using this through remotely and N/W IP is slow and etc)
Trust me it should work!!

How to migrate of a MCMS 2002 to our MOSS 2007 environment?

As per my MCTS prepartion for Configuration i go through some of migration tool.
We need to migration tasks that need to be completed. For this purpose in CodePlex some tools r avilable. And one fine article on MSDN. Go through the following link.
http://msdn.microsoft.com/en-us/library/aa480227.aspx