What Is DDE Share?

DDE Share is a tool for managing DDE conversations over a network. With DDE Share, you can create, modify, and delete DDE shares so applications on one computer can communicate and share data with applications on other computers. You can also define security restrictions on DDE shares.


DDE Shares

Lists the available DDE shares and makes their properties available for viewing and editing. Use this command to open the DDE Shares dialog box, in which you can add and delete DDE shares, modify the properties of existing DDE shares, and set the trust properties of DDE shares.


Trusted Shares

Lists the DDE shares that are trusted in the current user's context. Use this command to open the DDE Trusted Shares dialog box, in which you can view and modify trusted share properties and remove DDE shares from the list of trusted shares.


Select Computer

Specifies the computer whose DDE shares you want to view. Use this command to open the Select Computer dialog box, in which you can specify the computer.


Exit

Exits the DDE Share application. Any changes made during the current work session are automatically saved.


DDE Shares

Use this dialog box to create, manage, and delete global DDE shares on your computer running Windows NT. You can also view the DDE shares on any computer on the network.

Important

To create, modify, or delete a DDE share, you must be logged on as a member of the Administrators group.

Click the following for information about the dialog box:

 DDE Shares

 Add a Share

 Properties

 Delete Share

 Trust Share


DDE Shares

Lists the DDE shares active on your computer running Windows NT. If a share in the list is highlighted, it is the share affected if you click Properties, Delete Share, or Trust Share.


Add a Share

Creates a new DDE share with the properties you specify.


Properties

Opens the DDE Share Properties dialog box, in which you can view and edit any of the properties of the selected share except its name.


Delete Share

Deletes the selected DDE share.

Important

When you click Delete Share, the selected DDE share is deleted immediately. There is no confirmation message in which you can cancel the operation.


Trust Share

Opens the Trusted Shares Properties dialog box, used to modify any of the properties specific to trusted shares.


DDE Share Properties

Use this dialog box to view and modify the properties of global DDE shares on a computer running Windows NT.

Click the following for information about the dialog box:

 Share Name

 Application Name

 Topic Name

 Old Style

 New Style

 Static

 Allow start application

 Is service

 Item Security

 Grant access to all items

 Grant access only to these items

 Item

 Add item

 Delete item

 Permissions


Share Name

Displays the name of the share for which properties are shown.


Application Name

Displays the application name, also called the service name, associated with the DDE share. The application name may be old style, new style, or static, to differentiate applications that use static DDE links from those that use Object Linking and Embedding (OLE).


Topic Name

Displays the topic name of the logical data context of a DDE conversation. In most applications, the topic name is a file name. In other applications, the topic name can be any character string that is recognized by the server DDE application.

For example, a topic name in Clipbook is a dollar sign ($) followed by the name of an individual Clipbook page.

The System topic provides a context for information of general interest to any DDE client.


Old Style

Used to enter the application and topic if the application has NDDE_SHARE_TYPE_LINK permission and the topic name has the .DDE file extension.


New Style

Used to enter the application and topic names if the application has NDDE_SHARE_TYPE_LINK permission and the topic name has the .OLE file extension.


Static

Used to enter the application and topic names if the application uses only static DDE links.


Allow start application

When checked, a DDE conversation will start the DDE server application if it is not already running. When cleared, attempts to initiate a DDE conversation will succeed only if the server application is already running.


is service

When checked, the DDE server runs in the context of a service. When cleared, the DDE server runs in the context of an application.


Item Security

Indicates whether user can access any item in the DDE share or only specified items.


Grant access to all items

When selected, gives users with access to the DDE share access to all items in the selected topic.


Grant access only to these items

When selected, gives users with access to the DDE share access to only the items listed to the right.

For example, if the DDE share is a Microsoft Excel workbook, you can limit access to only specific worksheets.


Item

Specifies an item you want to add or delete to the list of items to which users have access. To do this, you must first click Grant access only to these items.


Add item

Adds the item specified in Item to the list of items to which users have access. To do this, you must first click Grant access only to these items.


Delete item

Deletes the item specified in Item from the list of items to which users have access. To do this, you must first click Grant access only to these items.


Permissions

Specifies the users and groups who have access to the DDE share and the type of access each user or group has.


DDE Share Name Permissions

Displays for viewing and editing the users and groups who have access to a DDE share.

Click the following for information about this dialog box:

 DDE Share Name

 Owner

 Name

 Type of Access

 Add

 Remove


DDE Share Name

Indicates the name of the DDE share whose permissions are displayed.


Owner

Shows the user or group that owns the DDE share.


Name

Lists the users and groups with access to the DDE share and the type of access for each.


Type of Access

Specifies the type of access for the currently selected user or group.

 	To change the type of access for the currently selected user or group, click a different access type in Type of Access.


Add

Used to add a user or group to the list of users and groups with access to the DDE share.


Remove

Used to remove a user or group to the list of users and groups with access to the DDE share.


Add Users and Groups

Used to add a group or user to the permission list for a file or directory.

Click the following for information about the dialog box:

 List Names From

 Names

 Add

 Show Users

 Members

 Search

 Add Names

 Type of Access


List Names From

Displays the name of the domain or computer whose groups are shown in Names. An asterisk (*) following the name indicates that local groups for that domain or computer are shown.

 	To display groups and users in another domain or on the computer, select another domain, or select the computer.


Names

Displays the groups or users belonging to the current domain or computer.

 	To add groups or users to the permissions list, select them in Names, and then click Add.


Add

 	To add groups or users to the audit list, select them in Names, and then click Add.


Show Users

 	To display the names of users belonging to the current domain or computer in Names, click Show Users.


Members

 	To see a group's contents, select it in Names, and then click Members.


Search

To add a group or user, you must know the domain that contains the account for the group or user.

 	To find the domain to which a group or user belongs, click Search.


Add Names

Displays the names of groups and users that you are adding to the permissions list.

 	To add groups or users to Add Names, select them in Names, and then click Add.


Type of Access

Displays a list of available permissions.

 	To set a permission for the groups and users listed in Add Names, select a permission, and then click OK.


Find Account

When you add a user or group to the permissions or audit list, you must know the name of the domain that contains the user or group's account. Use the Find Account dialog box to locate the domain of an account on a network running Windows NT Server.

Click the following for information about the dialog box:

 Find User or Group

 Search All

 Search Only In

 Search

 Add


Find User or Group

Used to type the name of the group or user whose account you want to find.


Search All

Used to search for the account in all listed domains.


Search Only In

Used to search for the account in one or more domains.


Search

Used to start searching the selected domain for the specified group or user.


Add

 	To add the user or group to Add Names in the Add Users And Groups dialog box, select the user or group in Search Results, and then click Add.


Local Group Membership

Displays the members of the local group selected in the Add Users And Groups dialog box. On a network running Windows NT Server, global groups that are members of a local group appear in the list. You can use this dialog box to do the following:

 	To include the entire group in Add Names in the Add Users And Groups dialog box, click Add.

 	To include some of the listed members in Add Names in the Add Users And Groups dialog box, select them and click Add.

 	To see a global group's members on a network running Windows NT Server, select the group and click Members.


Global Group Membership

Displays the members of the global group selected in the Add Users And Groups or Local Group Membership dialog box. You can use this dialog box to do the following:

 	To include the entire group in Add Names in the Add Users And Groups dialog box, click Add.

 	To include some of the listed members in Add Names in the Add Users And Groups dialog box, select them and click Add.


DDE Trusted Shares

Used to create, manage, and delete trusted DDE shares on your computer running Windows NT.

Click the following for information about the dialog box:

 Trusted DDE Shares

 Properties

 Delete Share


Trusted DDE Shares

Lists the trusted DDE shares active on your computer running Windows NT. If a share in the list is highlighted, it is the share affected if you click Properties or Delete Share.


Properties

Displays the properties of the selected trusted DDE share. When you click Properties, the Trusted Share Properties dialog box appears. You can edit any of the properties shown.


Delete Share

Deletes the selected DDE share from the list of trusted DDE shares.

Important

 When you click Delete Share, the selected DDE share is deleted immediately. There is no confirmation message from which you can cancel the operation.


Trusted Share Properties

Used to view and modify the properties associated with trusted DDE shares.

Click the following for information about the dialog box:

 Share Name

 Start Application Enable

 Initiate to Application Enable

 Cmd Show Override, with ... value

 Set


Share Name

Shows the name of the trusted DDE share whose properties are displayed.

 	To view the properties of a different trusted DDE share, enter its name in Share Name, and then click Set.


Start Application Enable

When checked, the server DDE application automatically starts when a client DDE application attempts to initiate a DDE conversation. When cleared, attempts to open a DDE conversation succeed only if the server DDE application is already running.


Initiate to Application Enable

When checked, new connections to the DDE share are allowed. When cleared, only current DDE conversations are allowed.


Cmd Show Override, with ... value

When checked, opens the DDE server application as specified by the integer in value. Possible values are 1 (normal), 2 (minimized), 3 (maximized), and 10 (application default).

When cleared, the DDE server application opens.


Set

Applies any changes you have made, without closing the dialog box.


Select Computer

Used to specify a computer whose DDE shares you wish to view.

Click the following for information about the dialog box:

 Computer

 Select Computer


Computer

Displays the name of the computer whose DDE shares can be viewed. You can enter a computer name directly in Computer or select one in Select Computer.


Select Computer

Displays a list of computers in your computer domain and in any trusted domains, from which you can select the computer for which you want to see DDE shares.


DDE share

Memory on one computer that can be addressed by applications on another computer during a DDE conversation.


DDE conversation

An interaction between two applications using shared memory.


Global DDE share

A DDE share with security properties that are set by computer.


Trusted DDE share

A DDE share with security properties that are set by user or group. All trusted DDE shares are also global DDE shares.


Application name

A character string that a server DDE application responds to when a client application attempts to establish a DDE conversation with the server application.


Topic name

A logical context in which a DDE conversation occurs. A topic name can be a file name or simply a character string that both the server and client DDE applications recognize.

For example, in Clipbook, the topic name is a dollar sign ($) followed by the name of a Clipbook page.


Item

A specific portion of a topic.

For example, an item could be a block of text in a file, a bitmap, or an individual worksheet in a Microsoft Excel workbook.


Click Help Topics to return to the list of topics.