Ocx Registration required

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Hi Experts
I need to understand something about OCX registration
Am Developing ocx control for 64Bit system and i found during development that it is required to register it in both(C:\windows\system32 and C:\windows\sysWOW64) system folder
like 64Bit version and 32Bit version ocx file Both are required to registred. I want to know why these two are compulsory why not single 64bit only.
Plz let me know about these concept
Thanks in adv.

Posted 3-Nov-11 20:04pm

R. S. Verma

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Prerak Patel · Accepted Answer · 2011-11-03T20:28:00

Solution 1

Are you sure you have to register it for both?
IMO, you need to register your 64bit dll/ocx using C:\windows\system32\regsvr32.exe and 32bit dll/ocx using C:\windows\sysWOW64\regsvr32.exe
You don't need to register using both.

Posted 3-Nov-11 20:28pm

Prerak Patel

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R. S. Verma 4-Nov-11 3:00am

thanks for replying
but am using single one that is C:\windows\system32\regsvr32.exe for registering both the version 32bit ocx and 64bit ocx version. and this is work only after that. I want to know why these two version are required, why not single one 64bit only.
that was my question....

Prerak Patel 4-Nov-11 3:22am

This is how it is designed. You need to register your 32bit ocx using C:\windows\sysWOW64\regsvr32.exe
See how regsvr32 works.
http://support.microsoft.com/kb/249873
http://24x7servermanagement.com/blog/?p=827

R. S. Verma 16-Nov-11 23:33pm

thanks for ur great responce prerak patel.... :)

Prerak Patel 17-Nov-11 4:21am

You are welcome. If your query is solved, mark the answer.