Thanks,
But now I see this error:

Mon 29 Apr 2013 10:44:54 AM MYT uppercase [error] Can't copy projects/127.0.0.1_uppercase/uppercase to slots/0/shared/uppercase: fopen() failed

what is wrong?

Is the physical name of the uppercase executable really uppercase? or did you use a version number? What is the content of your version.xml and input/output templates?

yes, my version file content:

<version>
<file>
<physical_name>vboxwrapper_26012_i686-pc-linux-gnu</physical_name>
<main_program/>
<copy_file/>
</file>

<file>
<physical_name>uppercase</physical_name>
<copy_file/>
<logical_name>shared/uppercase</logical_name>
</file>
<file>
<physical_name>vm_image86.vdi</physical_name>
<copy_file/>
<logical_name>vm_image.vdi</logical_name>
</file>
<file>
<physical_name>vbox_job_9.0.xml</physical_name>
<logical_name>vbox_job.xml</logical_name>
</file>


</version>

my input template file:
<file_info>
<number>0</number>
</file_info>
<workunit>
<file_ref>
<file_number>0</file_number>
<open_name>shared/in</open_name>
<copy_file/>
</file_ref>
<min_quorum>1</min_quorum>
<target_nresults>1</target_nresults>
</workunit>

my output template:

<file_info>
<name><OUTFILE_0/></name>
<generated_locally/>
<upload_when_present/>
<max_nbytes>10000</max_nbytes>
<url><UPLOAD_URL/></url>
</file_info>
<result>
<file_ref>
<file_name><OUTFILE_0/></file_name>
<copy_file>1</copy_file>
<open_name>shared/out</open_name>
</file_ref>
</result>

This all looks very good to me and I don't have a clue what's possibly wrong. I don't have the time to test this at the moment, maybe next weekend I'll derive some time but I'm not sure if possible.

I'm trying this out right now and maybe found your problem. When using the premade virtual machines you have to give your executable the logical name shared/boinc_app and not shared/uppercase !

When my final tests are complete I'll post you my files and directory structures.

I found the real problem. It's inside the premade VM. There will be an updated vdi file soon that will work. Are you still there or did you give up?

please forgive me I was so busy during previous week,I am now here and ready to solve the problem.

Regards.