VB Express error - Strange solution

Today I was working with VB express and did the following

• Created a new permission set
• Created a new code group
• Associated the code group with the permission set.
• Created a strong name for the simple windows app that I was working with.
• Associated the assembly with the code group

Then after doing such simple things got the following error while trying to debug

And then what next ?
Googled .
Found in the MSDN forums that there were many souls like me who had racked their brains on this.
Solution:
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Turn on the Terminal Services from the Control Panel->Settings->Services.
And the VB Express works like a charm as before .
Strange isnt it ? I will research more if you find why this is so. Any of you reading this can post comments on this.