RMMAIN SOLAR02: Create Document > Upload *.zip file fails

hi all

problem:

- i can not upload upload a document of type '.zip' to my project in transaction RMMAIN or SOLAR01.

it seems to me, that eventhougth i have a document type configured (using SOLAR_PROJECT_ADMIN) that allows selection of *.zip files in the file open dialog, the zip file never gets added to the project documentation.

example:

1. transaction RMMAIN

2. selecting a project step (i.e. Project Management)

3. open tab Proj. Documentation

4. select the + icon "Assign Project Documentation"

5. select Create Document

6. use "Upload File"

7. use "Documentation Type" "ACCE Roadmap Accelerator" (i.e. also any other doc type that allows selection of . documents).

8. select any ".zip" file that is residing on your C drive.

instead of adding the document to the roadmap, the zip file opens in windows explorer, and when the document is closed it is gone. it does not get added to the roadmap.

where do i have to change to be able to upload .zip files?

kind regards

markus