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Invalid access to memory location.

Hi everyone,

I have 2 web applications running on a server,
1. Frontend application which draws the php extension from C:\php434\sapi\php4isapi.dll (uses version 4.3.4)
2  Backend application c:\php432\sapi\phpisapi.dll. (uses version 4.3.2)

In IIS, I have added web service extensions for both phpisapi.dll and set to Allowed.
The Frontend application works fine but the backend application gives the error "Invalid access to memory location."

Both have different php.ini file locations:
1.  Frontend C:\php434\php.ini
2.  Backend C:\windows\php.ini

I am confused as to why the backend is having this error. Appreciate any advice. Thank you.

0
cq27
Asked:
cq27
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1 Solution
 
kevp75Commented:
what I would recommend is upgrading both to the latest PHP build (which is up to version 5)

and then make sure the ISAPI filter section of IIS admin for the .php extension is pointing to the correct isapi.dll for it.
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cq27Author Commented:
Hi everyone,

I found the answer to this question I posed after testing out a few rounds.

Both versions of PHP were using ISAPI and as such, they were sharing the same memory allocation, which caused a clash and crashed both applications.

The solution was to enter into IIS and separate the two under different application pools. This allowed each version to manage their own memory allocations and thus no further conflicts.
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cq27Author Commented:
I found out the reason on my own after consulting various associates.
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