You can look up your license key in your user account at the registration service share-it!, which delivered your license key normally.
Click here to log in.

If this isn't possible, please write an e-mail to support@tshsoft.com.

PanoramaStudio is only able to stitch a single row of images. But PanoramaStudio Pro supports multi-row panoramas as well.

PanoramaStudio Pro can stitch vertical panoramas in the multi-row mode.
The standard version of PanoramaStudio can this not directly. But it is possible to create a vertical panorama by stitching the input images which were rotated before by 90 degress. In this case you should leave the horizon line at the default setting of 50%. After the stitching process you can save the panorama as an image and rotate it to the final position with an image editing sofware.

This will result in a vertical parorama in cylindrical or spherical projection.

However, further processing as Java or QuickTimeVR Panorama is not possible for this panoramas.

There are two possible causes. First, it could be a wrong focal length set or an error in the stitching process. Please read chapter '4.6.2 Adjust focal length/horizon' in the manual for that purpose.

Second, some kind of bended lines are inevitable in a flat panoramic projection. A panoramic image is a flat projection of a sphere or a cylinder (spherical or cylindrical projection). There, long horizontal lines above and below the horizon seem to be bended. Only with this kind of projection it is possible to show a complete 360 degree full view within a flat image.

However, there is the function Panorama->Perspective projection for the creation of correct perspective views of parts from the panoramic image.

Not in theory. Practically the available RAM and the windows memory management respectively sets the limit. You can calculate that every Megapixel needs 4 MB of RAM. This is easily resulting in images with a size of several hundred MBs (not to confuse with the file size of the image - this size is normally highly reduced by strong compression).
Single-row panoramas with a size of 150 to 200 Megapixel should be possible in practice without problems. Such high-resolution images still can be printed in a size of several meters - even in high quality.
A down-scaling of the input images could be necessary, if there are too many input images or if the images are too big. The down-scaling can be done with the function Input images->Change size of all images.

For multi-row panoramas PanoramaStudio allows a lot more images, because this mode shows only a preview with reduced image size. The limiting factor of a multi-row panorama is mainly the available hard-disk space. So you can even stitch panoramas larger than a gigapixel in this mode.

There is no Undo available yet, indeed. But for the individual editing steps exists in each case the possibility to modify or reset changes.
Before the stitching of the panorama all changes on the input images can be reset by the function Input images->Restore original images.
After the alignment of the images all steps of the assembly can be edited with the functions in the Edit menu.
All steps of the post-processing can be reset by calling the Render function again.

As a matter of principle PanoramaStudio can stitch digital images from any conventional camera.
But it is helpful for a fast and high quality processing of images into a panorama, if PanoramaStudio knows some technical data of the camera. Thus, there is the integrated camera database, which contains already more than 1200 models. In the case your camera is missing, you can add it quite easily.
But even without this data your images will be stitched to a panorama.

Sure! Therefore you can use the free trial version here in the download area.
The trial version is fully functional.

The most common reason are a too wide overlaps of the input images. For best quality image overlaps with a maximum of 50% are recommended.
All overlaps exceeding this value are just boosting memory consumption and are extending the stitching time. The maximum value processed is 70% (this can be changed in the program settings). Wider overlaps of input images can't be matched, even in the manual correction mode.
If you have a row of input images with too wide overlaps, you can solve this problem by removing every second image from the row.