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# version Attribute

Specifies the ActiveX control version number.

## Type

`xsd:string`

## Parent Elements

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

## Definition

    <xsd:attribute name="version" type="xsd:string" use="optional"></xsd:attribute>

## Remarks

If the clsid attribute for an ActiveX control is included in the allowedControl element in a form definition file (.xsf), but the control is not installed on the user's computer, the control will be installed automatically if the cabFile attribute for the control is present and the CAB file is present in the form template file (.xsn) or in the same directory as the form definition file. If the control is already installed on the user's computer but is an earlier version than the one listed in the version attribute, the install process still will initiate if the CAB file for the control is present. If the CAB file is not present for some reason or the installation fails or is stopped, the form will not open.

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.

## Example

The following is an example of the version 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>

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