Error when execute the packages

All,

Could someone please tell me what to do with it and what might be causing it?

The packages were fine yesterday.

Here is the error message:

[Script Component 1 1 [3941]] Error: System.Runtime.InteropServices.COMException (0x80040154):

Retrieving the COM class factory for component with CLSID {A138CF39-2CAE-42C2-ADB3-022658D79F2F}

failed due to the following error:

80040154.at Microsoft.VisualBasic.Vsa.VsaEngine.CreateEngine()

at Microsoft.VisualBasic.Vsa.VsaEngine.CheckEngine()

at Microsoft.VisualBasic.Vsa.VsaEngine.set_RootMoniker(String value)

at Microsoft.SqlServer.VSAHosting.Runtime.CreateVsaEngine()

at Microsoft.SqlServer.Dts.Pipeline.ScriptRuntime..ctor(String projectName,

String moniker, String language, Boolean showErrorUI)

at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.CreateUserComponent()

Thanks in Advance

Check this KB:

http://support.microsoft.com/kb/931846