Re^4: exec not working?

[UVB]

This script:

#    Test perl execution
system "perl", "d:\\src_test\\perl\\hi.pl";
system "echo %path%";
system "which perl";
exec "perl", "d:\\src_test\\perl\\hi.pl";

Shows the path. The which program shows only the expected Perl.exe file. Here is the script output:

Hello world
C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\Sys
+tem32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies
+\ATI.ACE\Core-Static;C:\Program Files\WIDCOMM\Bluetooth Software\;C:\
+Program Files\WIDCOMM\Bluetooth Software\syswow64;D:\app\sql\product\
+11.2.0\client_1\bin;C:\Program Files (x86)\Java\jdk1.6.0_20\bin;d:\op
+t\ant\bin;C:\Program Files\Scite;C:\Program Files (x86)\GnuWin32\bin;
+C:\Program Files (x86)\WinMerge;D:\opt\apache-maven-2.2.1\bin;d:\orac
+le;D:\opt\OracleXeClient\bin;D:\opt\OracleXe\app\oracle\product\10.2.
+0\server\bin;D:\opt\SpringSource\spring-roo-1.2.0.RELEASE\bin;C:\Prog
+ram Files\SlikSvn\bin\;C:\Program Files (x86)\Microsoft SQL Server\10
+0\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C
+:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files (
+x86)\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\;C:\Prog
+ram Files (x86)\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files (
+x86)\QuickTime\QTSystem\;C:\Program Files\7-Zip;C:\Program Files (x86
+)\Programmer's Notepad\;D:\Ruby187\bin;C:\Program Files (x86)\Microso
+ft Visual Studio 9.0\Common7\IDE\PrivateAssemblies\; C:\Program Files
+ (x86)\ActiveState Komodo Edit 6\;D:\opt\scala-2.9.0.1\bin;c:\Program
+ Files\Sublime Text 2;C:\Program Files\TortoiseSVN\bin;C:\Program Fil
+es (x86)\Windows Live\Shared;C:\Program Files\Common Files\Microsoft 
+Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Sha
+red\Windows Live;d:\opt\strawberry\perl\bin;d:\opt\strawberry\perl\si
+te\bin;d:\opt\strawberry\c\bin;d:\opt\util;D:\opt\SpringSource\spring
+-roo-1.2.0.RELEASE\bin
d:\opt\strawberry\perl\bin\perl.EXE
Can't exec "perl": Invalid argument at D:\src_test\perl\test_exec.pl l
+ine 5.

Note that the first system and the last exec statement are provided with identical arguments - the exec throws an exception but the same earlier call to system doesn't. I do have a separate, older Perl installation - not on the path - which was not completely removed. When I installed the new Perl, I didn't un-install that Perl except I did remove it from the path. If I now change the path back to point at the older Perl build, I get the same broken behaviour of exec.

So the problem is my installation. If I want to fix it I may have to fully un-install both Perls.

Thank you for your help rovf.