A time-out occurs when you import large customization files into Microsoft Dynamics CRM

Method 1: Add the OLEDBTimeout and the ExtendedTimeout registry subkeys to increase the time-out values

1. Click Start, click Run, type regedit, and then click OK.
2. Locate the following registry subkey:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSCRM
3. Right-click MSCRM, point to New, and then click DWORD Value to create a new DWORD value.
4. Rename the DWORD value to the following value:
   OLEDBTimeout
   
   NOTE: This value is case sensitive
5. Right-click the DWORD value, and then click Modify.
6. In the Edit DWORD Value dialog box, type 86400 in the Value data box, click Decimal in the Base option, and then click OK.
   
   
   Note According to the requirement of the computer that is running SQL server and the number of customization files, the value can be larger than 86400. The value of 86400 is equivalent to 24 hours. This should only be done temporarily or as a troubleshooting step. The recommended value of this is between 30 and 300. Leaving this setting too high can result in performance issues.
7. Right-click MSCRM, point to New, and then click DWORD Value to create a new DWORD value.
8. Rename the DWORD value to the following value:
   ExtendedTimeout
9. Right-click the DWORD value, and then click Modify.
10. In the Edit DWORD Value dialog box, type 1000000 in the Value data box, and then click OK.
    
    Notes
    • In the Value data box, you can type a value that is larger than 1,000,000. However, do not type a value that is larger than 2,147,483,647. This is hexadecimal 0x7FFFFFFF.
    • Important: If this key already exists, notice the current value. After you have completed the import or the upgrade for Microsoft Dynamics CRM, set the value of this key back to the original value or delete the key if it did not previously exist. The default OLEDBTimeout value is 30 seconds.

Method 2: Modify the parameters in two different Web.config files

1. Click Start, click All Programs, click Administrative Tools, and then click Internet Information Services (IIS) Manager.
2. Expand the server name, and then expand Web Sites.
3. Right-click the Microsoft CRM v3.0 Web site or the Microsoft CRM v4.0 Web site, and then click Open.
4. Right-click the Web.config file, click Open With, and then click Notepad.
5. In Notepad, locate the following line.

   <httpRuntime executionTimeout="300" maxRequestLength="8192"/>

6. Change executionTimeout="3600" and change maxRequestLength="20000".
7. Save and then close the Web.config file.
8. In the directory in which you opened the Web.config file, open the MSCRMServices folder.
9. Right-click the Web.config file, click Open With, and then click Notepad.
10. In Notepad, locate the following line.

    <httpRuntime maxRequestLength="8192"/>

11. Change maxRequestLength="20000".
12. Save and then close the Web.config file.
    • Important: After completing the action that requires the above changes to the web.config file, these parameters should be reset to their default values.