Command-line parameter ... is invalid. Check spelling and start Microsoft Axapta again.

The following error message appeared to a client of me yesterday.

Situation problem:
Axapta is installed on a Server and the client accesses the axapta icons on a shared directory. There was only one user that cannot open axapta. For all the other users was axapta still available.

Solution:
The problem was a security issue linked to the user. The user logged on automatically to the directory with the wrong user name and password. So you have to changes the stored user names and passwords on the computer.

How to Manage Stored User Names and Passwords
To manage stored user names and passwords, follow these steps:

1. Log on to the computer as the user whose account you want to change.
2. Click Start, and then click Control Panel.
3. In Control Panel, click User Accounts under Pick a category to open the User
Accounts dialog box.
4. Open the Stored User Names and Passwords dialog box; to do so, use the
appropriate method:
* If you log on with an account with administrative privileges:
1. Under or pick an account to change, click your user account to
open the What do you want to change about your account? dialog box.
2. Under Related Tasks, click the Manage my network passwords.

Remove an Entry
To remove a credential:

1. In the Stored User Names and Passwords dialog box, click the credential that you want, and then click Remove. The following message is displayed:
The selected logon information will be deleted.
2. Click OK.
3. In the Stored User Names and Passwords dialog box, click Close.