TDP for Mail v.6.4.1. restore to pst file

[Chavdar Cholev]

Data Protection for Microsoft Exchange Server Version 6, Release 4, Level
1.09 on MS EXCH 2010
can not restore to .pst file larger than 2GB is it serious ....???

Any workaround ... except upgrade to TDP for mail v7.1.x >

Thank
Chavdar