Error message when you try to open multiple instances of the InfoPath form concurrently with different input parameters

Consider the following scenario:

• You create an InfoPath form template that contains an input parameter.
• You publish the InfoPath form template to a content library of a SharePoint site.

In this scenario, when you try to open multiple instances of the InfoPath form concurrently with different input parameters, you may receive the following error message:

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: To resolve this problem, apply hotfix 953920, and then set the InputParametersOpenMultipleForms registry entry to enable the hotfix. To do this, follow these steps:

1. Apply hotfix 953920.
   For more information, click the following article number to view the article in the Microsoft Knowledge Base:
   953920� Description of the InfoPath 2007 hotfix package: June 19, 2008
2. Set the InputParametersOpenMultipleForms registry entry. To do this, follow these steps:
   1. Click Start, click Run, type regedit, and then click OK.
   2. Locate and then click the following registry subkey:
      HKEY_Current_User\Software\Microsoft\Office\12.0\InfoPath\EditorCommon
   3. On the Edit menu, point to New, and then click DWORD Value.
   4. Type InputParametersOpenMultipleForms, and then press ENTER.
   5. Right-click InputParametersOpenMultipleForms, and then click Modify.
   6. In the Value data box, type 1, and then click OK.
   7. Exit Registry Editor.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.