# Extensions not support on Windows?

**URL:** <https://forums.imgtec.com/t/extensions-not-support-on-windows/758>\
**Category:** PowerVR Insider\
**Created:** [July 9, 2010, 8:08pm UTC](https://forums.imgtec.com/t/extensions-not-support-on-windows/758 "2010-07-09T20:08:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![wuh](https://avatars.discourse-cdn.com/v4/letter/w/b5a626/32.png) [@wuh](https://forums.imgtec.com/u/wuh)\
**Post date:** [July 9, 2010, 8:08pm UTC](https://forums.imgtec.com/t/extensions-not-support-on-windows/758/1 "2010-07-09T20:08:32Z")

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Hi there,  
  
  
  
  
  
I am using imgTech SDK for simulating openGL ES 1.x on Windows. Everything works fine except extensions. Even though framebuffer object, mapping buffer can be implemented the other way, but glBlendEquationOES seems not. If it is not supported, is there an alternative to do that?  
  
  
  
  
  
thanks  
  
  
  
  
  
hao

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<div class="post-metadata">

**Author:** ![JoeDavis](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.imgtec.com/joedavis/32/71_2.png) [@JoeDavis](https://forums.imgtec.com/u/JoeDavis)\
**Post date:** [July 27, 2010, 8:02am UTC](https://forums.imgtec.com/t/extensions-not-support-on-windows/758/2 "2010-07-27T08:02:54Z")

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Hi,  
  
  
  
  
  
Sorry for the slow reply.  
  
  
This issue as been discussed in the following thread, and a bug has been filed for this issue (which will be resolved in a future release):  
  
  
[https://www.imgtec.com/forum/forum\_posts.asp?TID=893](https://www.imgtec.com/forum/forum_posts.asp?TID=893)  
  
  
  
  
  
Regards,  
  
  
Joe