It's my complete content.

Because use pp packing my script is so slowly, so i use perlapp

my script mongo.pl:

#!/usr/bin/perl -w
use strict;
use MongoDB;
use MongoDB::Connection;
use MongoDB::Database;
# mongodb
my $conn = MongoDB::Connection->new(host => '127.0.0.1:27017',        
+                        query_timeout => 1000 * 6000);
my $db = $conn->ygzj_dev;
print "$db";
[download]

Use "perl mongo.pl" it print "MongoDB::Database=HASH(0x33b2e8)", It worked fun.

when I use perlapp compiling it to exe,My command is "perlapp --shared public --norunlib --gui --verbose --warnings --exe mongo.exe mongo.pl", perlapp generate a mongo.exe and there have 5 warnings ,the warnings is:

<1>
Devel\GlobalDestruction.pm:
    warn: auto\Devel\GlobalDestruction\GlobalDestruction.dll not found
    refby: C:\Perl64\lib\Moose\Meta\Role.pm line 16
    refby: C:\Perl64\lib\Moose\Object.pm line 14
    refby: C:\Perl64\lib\Moose\Meta\Method\Destructor.pm line 13
    refby: C:\Perl64\lib\Class\MOP\Package.pm line 15
    file: C:\Perl64\lib\Devel\GlobalDestruction.pm
....
....
<2>
Mouse\Util.pm:
    warn: auto\Mouse\Util\Util.dll not found
    refby: C:\Perl64\site\lib\Mouse.pm line 11
    refby: C:\Perl64\site\lib\Mouse\Meta\Attribute.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Meta\Class.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Meta\Module.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Util\TypeConstraints.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Object.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Exporter.pm line 17
    refby: C:\Perl64\site\lib\Mouse\Meta\Role.pm line 2
    refby: C:\Perl64\site\lib\Mouse\PurePerl.pm line 11
    refby: C:\Perl64\site\lib\Mouse\Meta\TypeConstraint.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Util\MetaRole.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Meta\Role\Composite.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Meta\Role\Application.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Meta\Method\Destructor.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Meta\Method\Constructor.pm line 2
    refby: C:\Perl64\site\lib\Mouse\Meta\Method\Accessor.pm line 2
    file: C:\Perl64\site\lib\Mouse\Util.p

....
....
<3>
Perl\Tidy.pm:
    warn: Can't locate Perl\Tidy.pm
    refby: C:\Perl64\lib\Eval\Closure.pm line 151
...
...
<4>
SetDualVar.pm:
    warn: Can't locate SetDualVar.pm
    refby: C:\Perl64\lib\Win32\TieRegistry.pm line 39
...
...
<5>
VMS\Feature.pm:
    warn: Can't locate VMS\Feature.pm
    refby: C:\Perl64\lib\Cwd.pm line 211
[download]

I have already installed Mouse, Devel-GlobalDestruction, VMS-FileUtils..., I think these all warning msg is not important, Because when I compiled other script also had some warnings. When I executed the mongo.exe file,there have run error, error msg:

{.\mongo.exe}
Could not find a suitable Params::Validate implementation: Can't locat
+e Params/Validate/XS.pm in @INC (@INC contains:) at /<C:\Users\Admini
+strator\Desktop\tmp\mongo.exe>Module/Runtime.pm line 317.
Can't locate Params/Validate/PP.pm in @INC (@INC contains:) at /<C:\Us
+ers\Administrator\Desktop\tmp\mongo.exe>Module/Runtime.pm line 317.
 at /<C:\Users\Administrator\Desktop\tmp\mongo.exe>Params/Validate.pm 
+line 66.
BEGIN failed--compilation aborted at /<C:\Users\Administrator\Desktop\
+tmp\mongo.exe>DateTime/Duration.pm line 12.
BEGIN failed--compilation aborted at /<C:\Users\Administrator\Desktop\
+tmp\mongo.exe>DateTime.pm line 43.
BEGIN failed--compilation aborted at /<C:\Users\Administrator\Desktop\
+tmp\mongo.exe>MongoDB/GridFS.pm line 24.
BEGIN failed--compilation aborted at /<C:\Users\Administrator\Desktop\
+tmp\mongo.exe>MongoDB/Database.pm line 23.
BEGIN failed--compilation aborted at mongo.pl line 5.
[download]

I have allready installed "Params-Validate Validate method/function parameters", Can I compile the script to exe file with could execute. You can test it. my os is windows7 64 bit, my perl is 5.16(active state perl), Thank you very much!