diff --git a/README.md b/README.md
index 152bec7..4830261 100644
--- a/README.md
+++ b/README.md
@@ -83,13 +83,44 @@ Microsoft Handheld PC 3.0(HPC Pro) Platform SDK: [Windows CE Developers Conferen
 [Microsoft Windows CE 2.12 Platform Builder](https://www.betaarchive.com/database/view_release.php?uuid=e73feaeb-c4dc-4915-9b16-1692c269d3b5)<br />
 <br />
 ### Windows CE 3.x
-#### Windows CE 3.0
+#### Windows CE 3.00
 [Microsoft Windows CE 3.0 Platform Builder(Part 1)](https://archive.org/details/ms-wince-pb30)<br />
 [Microsoft Windows CE 3.0 Platform Builder(Part 2)](https://archive.org/details/ms-wince-pb30_5-11)<br />
 [Microsoft Pocket PC 2000(Palm-size PC 3.0) Platform SDK(Backup)](https://pan.baidu.com/s/14ykCvhJfTmiYzloPs6ApRg) 提取码6zjx<br />
 [Microsoft Handheld PC 2000 SDK](https://archive.org/details/hpc2ksdkusa)<br />
 [Microsoft Smart Phone 2002 SDK](https://archive.org/download/windows-mobile-sdks-2023/smartphone_2002_sdk.exe)<br />
 [Microsoft Pocket PC 2002 SDK](https://archive.org/download/windows-mobile-sdks-2023/ppc2002_sdk.exe)<br />
+<br />
+### Windows CE 4.x
+#### Windows CE 4.00
+[Microsoft Windows CE.net 4.0 Platform Builder Emulation Edition(Backup)](https://www.123pan.com/s/KDyhTd-zTPN3) 提取码:eGCt<br />
+[Microsoft Windows CE.net 4.0 Platform Builder](https://www.betaarchive.com/database/view_release.php?uuid=51000b20-9a15-4403-8b56-c3759aa682b7)<br />
+#### Windows CE 4.10
+[Microsoft Windows CE.net 4.1 Platform Builder Emulation Edition](https://archive.org/details/winceemul41)<br />
+[Microsoft Windows CE.net 4.1 Platform Builder](https://www.betaarchive.com/database/view_release.php?uuid=fc6d66f5-e047-4303-9f0e-82e7f1de6645)<br />
+#### Windows CE 4.20
+[Microsoft Windows CE.net 4.2 Platform Builder Emulation Edition](https://archive.org/details/winceemul42)<br />
+[Microsoft Windows CE.net 4.2 Platform Builder](https://www.betaarchive.com/database/view_release.php?uuid=2b657ca7-2b53-4aac-8b1e-446b5669fda9)<br />
+[Microsoft Windows Mobile 2003 SDK](https://archive.org/download/WMSDK/Microsoft%20Pocket%20PC%202003%20SDK.msi)<br />
+#### Windows CE 4.21
+[Microsoft Windows Mobile 2003 SE Images](https://archive.org/download/WMSDK/WM2003SEimages.msi)<br />
+<br />
+### Windows CE 5.x
+#### Windows CE 5.00
+[Microsoft Windows CE.net 5.0 Platform Builder](https://archive.org/details/en_win_ce_net_cd1)<br />
+#### Windows CE 5.10
+[Microsoft Windows Mobile 5.0 SDK](https://archive.org/download/WMSDK/Windows%20Mobile%205.0%20Pocket%20PC%20SDK.msi)<br />
+#### Windows CE 5.20
+[Microsoft Windows Mobile 5.0 Pocket PC SDK](https://archive.org/download/WMSDK/Windows%20Mobile%205.0%20Pocket%20PC%20SDK.msi)<br />
+[Microsoft Windows Mobile 6 Professional SDK](https://archive.org/download/WMSDK/Windows%20Mobile%206%20Professional%20SDK%20Refresh.msi)<br />
+[Microsoft Windows Mobile 6 Standard SDK](https://archive.org/download/WMSDK/Windows%20Mobile%206%20Standard%20SDK%20Refresh.msi)<br />
+[Microsoft Windows Mobile 6.1.4 Professional Images](https://archive.org/download/WMSDK/Windows%20Mobile%206.1.4%20Professional%20Images%20%28USA%29.msi)<br />
+[Microsoft Windows Mobile 6.1.4 Standard Images](https://archive.org/download/WMSDK/Windows%20Mobile%206.1.4%20Standard%20Images%20%28USA%29.msi)<br />
+[Microsoft Windows Mobile 6.5 Professional DKT](https://archive.org/download/WMSDK/Windows%20Mobile%206.5%20Professional%20Developer%20Tool%20Kit%20%28USA%29.msi)<br />
+[Microsoft Windows Mobile 6.5 Standard DKT](https://archive.org/download/WMSDK/Windows%20Mobile%206.5%20Standard%20Developer%20Tool%20Kit%20%28USA%29.msi)<br />
+[Microsoft Windows Mobile 6.5.3 Professional DKT](https://archive.org/download/WMSDK/Windows%20Mobile%206.5.3%20Professional%20DTK.msi)<br />
+[Microsoft Windows Mobile 6.5.3 Standard DKT](https://archive.org/download/WMSDK/Windows%20Mobile%206.5.3%20Standard%20DTK.msi)<br />
+<br />
 
 
 ## 🤝友情链接