vmProtect 8 - Exchange backup failing because exchange_backup_agent fails to run

Hello

We have a Windows Small Business Server 2011 we're trying to back up, but it fails with the following error message:

Full error message in Acronis console:

=== START ===
Task 'x' failed: 'Failed to create a backup.
Additional info:
--------------------
Error code: 3
Module: 435
LineInfo: 555b5abba09501ce
Fields:
Message: Failed to create a backup.
--------------------
Error code: 32786
Module: 114
LineInfo: 28314c961de7d32e
Fields:
Message: Failed to prepare for backing up.
--------------------
Error code: 353
Module: 149
LineInfo: a71592046cb2c5f6
Fields:
Message: Failed to back up the group.
--------------------
Error code: 2
Module: 218
LineInfo: 338a407ad20e0987
Fields:
Message: Error occurred while running the backup and recovery engine.
--------------------
Error code: 368
Module: 149
LineInfo: 4db9605401c15283
Fields:
Message: Failed to prepare for the Microsoft Exchange database validation.
--------------------
Error code: 239
Module: 83
LineInfo: b7e5b06ccbf4eabe
Fields:
Message: Failed to execute agent 'exchange_backup_agent.exe' with parameters '{ --get-strids, script.xml }'.
--------------------
Error code: 240
Module: 83
LineInfo: a83807079d04306
Fields:
Message: Failed to run script 'cd "C:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3\" && exchange_backup_agent.exe "--get-strids" "script.xml">932DD7CF-D6AA-4302-8016-9B15989DC7ED'.
--------------------
Error code: 139
Module: 83
LineInfo: 8551c5c00e774fa9
Fields:
Message: Failed to process guest api call of 'ListProcessesInGuest'.
--------------------
Error code: 257
Module: 83
LineInfo: 8551c5c00e774fcc
Fields: faultTypeId : 140
Message: SOAP fault code: '12', Description: 'The guest operations agent could not be contacted.', Detail: 'No details.'
--------------------'.
=== END ===

I noticed a command being executed on the server itself when trying to back up Exchange was failing, so I logged into the server and tried running the command manually:

C:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3>exchange_backup_agent.exe "--get-strids" "scri
pt.xml"
ARgA1gEtJNQ/IvqXUkZhaWxlZCB0byBwcm9jZXNzIGNvbW1hbmQgbGluZSBvbiBBZ2VudCBTZXJ2ZXIgc2lkZS4gU2VlIGxvZ3MgZm9yIGRldGFpbHMuACRt
b2R1bGUAV0M6XFVzZXJzXHN5c2FkbWluXEFwcERhdGFcTG9jYWxcVGVtcFwwREY5OTlCRS0yRTJBLTRCOTYtOEFFQS04NDcwRjJDRkNERjNcZXhjaGFuZ2Vf
YmFja3VwX2FnZW50LmV4ZQAAAQDWAajmPx1oeh7dRmFpbGVkIHRvIHByb2Nlc3MgY29tbWFuZCAnR2V0U3RyaWRzJy4AJG1vZHVsZQBXQzpcUHJvZ3JhbSBG
aWxlcyAoeDg2KVxBY3JvbmlzXHZtUHJvdGVjdFxFeGNoYW5nZUJhY2t1cEFnZW50XGJhY2t1cF9hZ2VudF9jb20uZXhlAADIANYBVtJrvKmDLNFGYWlsZWQg
dG8gcmVzb2x2ZSBwYXRocy4AAAQA1gEyx+c5gslOy0ZhaWxlZCB0byBsb2FkIGlucHV0IGRhdGEgZnJvbSAnQzpcVXNlcnNcc3lzYWRtaW5cQXBwRGF0YVxM
b2NhbFxUZW1wXDBERjk5OUJFLTJFMkEtNEI5Ni04QUVBLTg0NzBGMkNGQ0RGM1xzY3JpcHQueG1sJy4AABEABAD69yE7e3Rf81RoZSBzcGVjaWZpZWQgZmls
ZSBkb2VzIG5vdCBleGlzdC4AZnVuY3Rpb24AQU9wZW5GaWxlVwBmaWxlbmFtZQBXXFw/XEM6XFVzZXJzXHN5c2FkbWluXEFwcERhdGFcTG9jYWxcVGVtcFww
REY5OTlCRS0yRTJBLTRCOTYtOEFFQS04NDcwRjJDRkNERjNcc2NyaXB0LnhtbAAA8P8AAL+47WS9/Si9VGhlIHN5c3RlbSBjYW5ub3QgZmluZCB0aGUgZmls
ZSBzcGVjaWZpZWQAY29kZQBOAgAHgAAAAAAA
C:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3>

That appears to be return base64 output, so I decoded it:

?-$?"RFailed to process command line on Agent Server side. See logs for details.?$module?WC:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3\exchange_backup_agent.exe????hzFailed to process command 'GetStrids'.?$module?WC:\Program Files (x86)\Acronis\vmProtect\ExchangeBackupAgent\backup_agent_com.exe???Vk,Failed to resolve paths.???29NFailed to load input data from 'C:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3\script.xml'.????!;{t_The specified file does not exist.?function?AOpenFileW?filename?W\\?\C:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3\script.xml????d(The system cannot find the file specified?code?N??????

It's complaining it can't find "script.xml". And indeed: there is no script.xml there:

Volume in drive C has no label.
Volume Serial Number is 4EE0-64D2

Directory of C:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3

07/03/2013 10:04 .
07/03/2013 10:04 ..
07/03/2013 01:24 876 B2E11B4F-45EB-46B5-9D7E-723C9D7D4CED
07/03/2013 01:17 9.046.056 exchange_backup_agent.exe
07/03/2013 10:04 0 output.txt
07/03/2013 10:01 736 server_cout
4 File(s) 9.047.668 bytes
2 Dir(s) 94.299.860.992 bytes free

There is this file B2E11B4F-45EB-46B5-9D7E-723C9D7D4CED there as well, which also appears to have base64 text in it:

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

So I decoded that too:

?-$?"RFailed to process command line on Agent Server side. See logs for details.?$module?WC:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3\exchange_backup_agent.exe????hzFailed to process command 'CollectMeta'.?$module?WC:\Program Files (x86)\Acronis\vmProtect\ExchangeBackupAgent\backup_agent_com.exe??0];UAn invalid file has been detected.??
??!;{t_Error occurred while creating the file.?function?ACreateFileW?filename?W\\?\C:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3\meta\bunch_1_rank_1_meta.sqlite????d(The system cannot find the path specified?code?N??????

That last one is complaining about "An invalid file has been detected." and Error occurred while creating the file.?function?ACreateFileW?filename?W\\?\C:\Users\sysadmin\AppData\Local\Temp\0DF999BE-2E2A-4B96-8AEA-8470F2CFCDF3\meta\bunch_1_rank_1_meta.sqlite????d(The system cannot find the path specified?code?N??????

If you look again at the directory listing above, there is no "meta" directory. So that's probably why its failing. Shouldn't that directory be created automatically? Since the temporary path changes each time, I can't create it myself in advance...

How do I fix this?