Error during installation SAP SAP NetWeaver Developer Studio

Hello,

Can somebody help installing SAP SAP NetWeaver Developer Studio?

I get the message:

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SAP NetWeaver Developer Studio 2.0.0. Setup Wizard not Completed

The SAP NetWeaver Developer Studio 2.0.0 Setup has not successfully installed all selected components on your computer, either because a component could not be installed or the process has been aborted.

Click Finish to exit the wizard.

The following program files could not be installed:

c:\documents and settings\all users\documenten\sap\workspace\.metadata\.plugins\org.eclipse.jdt.launching\vmconfiguration.xml

The installed applications may not function correctly until all program files are successfully installed. For detailed error descriptions, please open file://D:\IDE\setup\saplogvw.exe .

The following program files could not be installed:

c:\documents and settings\all users\documenten\sap\workspace\.metadata\.plugins\org.eclipse.jdt.launching\vmconfiguration.xml

The installed applications may not function correctly until all program files are successfully installed. For detailed error descriptions, please open file://D:\IDE\setup\saplogvw.exe .

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It looks like a Windows XP problem, because manually I can't copy or create a file in de directory:

C:\Documents and Settings\All Users\Documenten

So the following directory doesn't exits:

c:\documents and settings\all users\documenten\sap\workspace\.metadata\.plugins\org.eclipse.jdt.launching\

It's weird that I don't have access to the "Documenten" directory (this is the dutch Shared-documents-directory) , because I never changed it.

When I right-click the directory "Documenten", and I go to Properties, then I don't see a tab setting access groups.

How can I get access again to the "Documenten"-directory?

Kind regards,

Alwin.