Apache :: pcre.dll error starting httpd

rberla · Joined: 10 Feb 2017 Posts: 4 Location: Switzerland, Zurich

Hello

I downloaded apache 2.4.25 file httpd-2.4.25-win64-VC14.zip, unzipped it and placed it on my windows server 2012 R2 to C:\Apache24\...

When I start httpd.exe I get a popup with the error: entry point 'isupper' in pcre.dll not found.

I can not resolve this issue. Any idea how to fix this?

Kind regards
rberla

admin · Site Admin Joined: 15 Oct 2005 Posts: 677

Strange.

Your download is corrupted or httpd is loading an other dll.

Did you change anything in httpd.conf or otherwise ?

rberla · Joined: 10 Feb 2017 Posts: 4 Location: Switzerland, Zurich

I retrieved the sha1 value and checked it with the corresponding value given at the download page. It was equal.

I did not change anything on the httpd.conf file until now. The path in there to the the apache location is correct. I also added the application to systemvariables' path-variable ...;C:\apache24;c:\apache24\bin;...

The pcre.dll is part of the apache distribution residing in the apache24/bin directory. I suppose httpd.exe takes it from there.

I unzipped the the distribution file using 7ZIP and copied the Apache24 part to C:\Apache24\... It did not feel like a real installation and proper registration to the windows operating system to me.

I also installed both Microsoft's Visual Studio C++ 2015 64-bit and 32-bit versions on the server. I found the recommendation to do so in apache installation sites.

I am working on this for many hours over three days now and I ran out of ideas how to fix this problem. Any new idea is appreciated.

Thanks

Jan-E · Joined: 09 Mar 2012 Posts: 1248 Location: Amsterdam, NL, EU

Open a DOS-prompt and enter 'where pcre.dll' to see if there is another pcre.dll in your path.

rberla · Joined: 10 Feb 2017 Posts: 4 Location: Switzerland, Zurich

Hello Jan-E

Thanks for your response. I had asked my provider to reload a snapshot-save from last Wednesday 08.02.2017 in order to get rid of a series of changes I made on that Windows Server 2012 R2.

The state now is: When I start httpd.exe the error pop-up says 'the procedure entry point 'malloc' in C:\Apache24\bin\libapriconf-1.dll is missing'.

When I use the where cmd it says:
C:\Apache24\bin>where libapriconv-1.dll
C:\Apache24\bin\libapriconv-1.dll

Apache 2.4.25 does not seem to be compatible with my Windows Server 2012 R2. I will try to install an Apache Version 2.2.

Jan-E · Joined: 09 Mar 2012 Posts: 1248 Location: Amsterdam, NL, EU

rberla · Joined: 10 Feb 2017 Posts: 4 Location: Switzerland, Zurich

Thanks for that valuable input. I will keep v2.4.25 then.