AutoCAD Architecture

[#1]

Thanks for letting me know.  I'm glad I could help.

[#2]

This corrected my problem as well.  Also have BSD Specklink, but not sure if it is interrelated due the the files replaced.

[#3]

Awesome.  Glad I could help.

[#4]

Spoiler

Yup.  This solution worked for me as well.  I had had the problem ever since upgrading from Civil 3D 2011 32-bit to Civil 3D 2013 64-bit.  This solution worked like a charm.

[#5]

This solved the problem for my users with the error as well.  Excellent, thank you for sharing this solution.