Apache error caused by PHP aspell

I'm running Apache 2.2.17.0 on Windows 7 Ultimate 64-bit with 8 GB RAM. Both PHP 5.2.16 and 5.2.17 are causing this error when invoking pspell. I have aspell loaded on the computer and added to the PATH during boot. Renaming/removing the aspell binary in the C:\php directory resolves the issue. Faulting application name: httpd.exe, version: 2.2.17.0, time stamp: 0x4cbbe9e8 Faulting module name: aspell-15.dll, version: 0.0.0.0, time stamp: 0x42dc4716 Exception code: 0xc0000005 Fault offset: 0x0008cef5 Faulting process id: 0xc84 Faulting application start time: 0x01cbb37e808ae078 Faulting application path: C:\Apache\bin\httpd.exe Faulting module path: C:\php\aspell-15.dll Report Id: c98d18c7-1f71-11e0-8a80-a4badb01eac1 Any clues as to the issue?