When running Sync, the error, “Class not registered." occurred.

Last Update Date : 2018-05-17

 [Solution]

When a class registration error occurs, follow the steps below;

Option 1) Register class automatically by batch file.

1-1) Unzip AUTO_NPS_COM_REG.zip in the NPS installation folder.

(Default installation folder: C:\Program Files\Samsung\Samsung New PC Studio\)

 

1-2) Run unzipped NPS_COM_REG.bat by double-clicking it.

(For Vista, select the file, right-click and run it with Administrator authority.)

(The below command window will automatically run and end.)

 1-3) Run NPS to check if the same error occurs.

 

Option 2) Register class manually.

2-1) Go to ‘Start’ and ‘Run’

2-2) Enter ‘cmd’ and click ‘OK”

     

2-3) Go to the NPS installation folder.

     

2-4) Unzip MANUAL_NPS_COM_REG.zip and copy each line, paste it in the cmd window and press Enter.

 2-5) Run NPS to check if the same error occurs.

 

Option 3) When NPSSync.dll error occurs, replace mapi32.dll.

3-1) Go to ‘Start’ and ‘Run’

3-2) Enter ‘cmd’ and click ‘OK”

     

3-3) Go to the NPS installation folder.

     

3-4) Enter regsvr32 NPSSync.dll, press ‘Enter’ and check if the below error occurs.

     

3-5) When error occurs, mapi32.dll might be damaged, a wrong version or does not exist.

(Double-click C:\Windows\System32\fixmapi.exe and the file is automatically created if it did not exist even if it is not clearly visible.)

 

3-6) Run NPS to check if the same error occurs.

-   If the message of success shows up by following 3-2 and 3-3 again

 

3-7) If the same error occurs check the version of mapi32.dll.

-   Go to C:\Windows\System32\mapi32.dll to see if its version is 4.0 or lower.

  

-   If the version is 4.0 or lower, (Change the name of mapi32.dll at C:\Windows\System32\ to mapi32.dll_old and paste the below file.)

     

 3-8) Run NPS to check if the same error occurs.

-   If the message of success shows up by following 3-2 and 3-3 again

 

    ** If you replaced mapi32.dll,

  •  If you have already installed Outlook in your PC and use it, run it to check if there is no problem.
  • If there is a problem, restore mapi32.dll_old to mapi32.dll.
  • Please zip mapi32.dll and send the zip file tonewsps@mobileleader.com.

 

Not finding what you're looking for? We're here to help.

Online

Chat with Us

Live Chat support with a Samsung product expert.
Support Timing : 8AM to 10PM GMT+4

Send us an Email

We'll respond your query quickly.

Email to CEO

Contact the dedicated CEO's Office.

Samsung Members Web Community

Log in with your Samsung Account and join the Samsung Members community! Peer to peer support for mobile phones.

Call

800-7267864(SAMSUNG)

UAE : 8AM to 10PM / 7 days a week

800-2255(CALL)

Qatar : 7AM to 9PM / 7 days a week

183-2255(CALL)

Kuwait : 7AM to 9PM / 7 days a week

8000-4726(GSAM)

Bahrain : 7AM to 9PM / 7 days a week

800-72627(SAM CS)

Oman : 8AM - 10PM / 7 days a week

800-7-729(S-PAY)

UAE only : 24/7

* For any printer related enquiries please visit the HP website .

Face-to-face support

Service Location

Search the nearest Samsung Service Centers in your area.

Contact Us