While trying to connect to SQL server 2005 standard edition through SQL Server Management Studio 2005 I get the following error:
Follow these steps then you solve your problem 100%.
Then open command prompt by pressing (window + r) keys and type services.msc and click OK or press Enter key.
And search **SQL Server (SQLEXPRESS) as I show in the image.
Now see left upper side and click start.
If you open Microsoft SQL Server Management then you not get any type error.
Enjoy!!!