Files Transfer Error on SPARK!

We are encountering some errors when we tried to transfer a file(.EXE, .ARJ.ZIP) using SPARK on OPENFIRE SERVER.

Other files were ok like (.DOC.XLS. TXT).

Please help!!!

Thanks in advance.

Transfers file option is ENABLE on Openfire console ?

File Transfer option is ALREADY ENABLED but STILL CANNOT SEND the following files:

.EXE

.ARJ

.ZIP

.RAR

Hoping for your immediate support.

Thanks.

File Transfer option is ALREADY ENABLED but STILL CANNOT SEND the following files:

.EXE

.ARJ

.ZIP

.RAR

Hoping for your immediate support.

Thanks.