Hi Morten,
As far as I can see, you've contacted the Support team, and the issue is resolved now.
I'll post the answer from our team so that everybody who faces this issue could resolve it:
Our R&D team has just recently found out that this TestComplete v10.40 installation error appears because of corrupted TFS installation on the machine.
The solution is to:
1. Install Team Foundation Server 2013 Express:
Then:
2. Install TestComplete v10.40
OR
Try re-installing TestComplete v10.40 *without* the Visual Studio Integration features selected.
Please let me know if you have any questions.
