# clsid Attribute

Specifies the COM class ID (CLSID) of an ActiveX control.

## Type

`xsd:string`

## Parent Elements

Element | Description
--- | ---
allowedControl | Specifies the ActiveX controls that are allowed to be instantiated.

## Definition

    <xsd:attribute name="clsid" type="xsd:string" use="required" ></xsd:attribute>

## Remarks

Note This item is not supported when the Disable Service Pack features option on the Advanced tab of the Options dialog box in InfoPath is selected or when Microsoft Office 2003 Editions Service Pack 1 or later is not installed. Any form defined by a form definition file (.xsf) that includes this item cannot be opened in InfoPath when service pack features are disabled or unavailable.

When the view contains an OBJECT tag, the control will be instantiated only if the CLSID is listed as an allowedControl element in the permissions element. If an ActiveX control with this CLSID is not present on the system and can't be installed, the form will not open.

## Example

The following is an example of the clsid attribute as it is used in the allowedControl element:

    <xsf:permissions>
      <xsf:allowedControl
            cabFile="{84F32C01-78D8-4B93-8ED4-106DA70224C2}.cab”
            clsid="{84F32C01-78D8-4B93-8ED4-106DA70224C2}"
            version="1,0,0,1" />
      <xsf:allowedControl
            clsid="{F08DF954-8592-11D1-B16A-00C0F0283630}" />
    </xsf:permissions>

©2003-2004 Microsoft Corporation. All rights reserved. Permission to copy, display and distribute this document is available at: http://msdn.microsoft.com/library/en-us/odcXMLRef/html/odcXMLRefLegalNotice.asp