Cannot create a new style or add symbols to a style

Click Start > Run and register the following files:

• dao360.dll
• msacc.olb

The paths to these files depends on the computer operating system and the version of Microsoft Office installed on the computer.

A sample of the command syntax to enter in the Windows Run dialog box is as follows:

regsvr32 "C:\Program Files\Common Files\Microsoft Shared\dao\dao360.dll"

Here are samples of the possible locations for these files:

• C:\Program Files\Common Files\Microsoft Shared\dao\dao360.dll
• C:\Program Files\Microsoft Office\OfficeXX\msacc.olb
• C:\Program Files (x86)\Common Files\Microsoft Shared\dao\dao360.dll
• C:\Program Files (x86)\Microsoft Office\OfficeXX\msacc.olb

Note:
This may also be related to the problem described in Knowledge Base article 39798, in which the user is unable to open a personal geodatabase (.mdb), access data stored in the personal geodatabase, or create a new personal geodatabase.

If attempting to register either of the above files returns an error or fails:

• Perform a clean uninstall and reinstallation of ArcGIS for Desktop.
• Uninstall any custom styles or third-party extensions and styles.
• The user profile may be corrupt. Check the installation by logging in to another account on the system or network. If necessary, repair the corrupt user profile.
• Review the installation or administrative rights of Microsoft Access on the system.

If further assistance is needed, contact Esri Support Services at 888-377-4575 or at support.esri.com.