Hi Endlessart,
Usually in a program like ACDSee, Paint Shop Pro, and presumably also in Photosuite, there's an option to restore the default file associations.
Before uninstalling such a program it's always advisable to do that, reboot, and only then uninstall the program.
Otherwise you do need to restore the default file associations yourself.
Try this:
Paste the bold into Notepad, save as Jpeg.reg, and doubleclick it.
Answer 'yes' when you're asked whether you'd like to have the contents of your reg file merged into the registry
This will restore the default JPG/JPE/JPEG file associations.
REGEDIT4
[HKEY_CLASSES_ROOT\.jpe]
"Content Type"="image/jpeg"
@="jpegfile"
[HKEY_CLASSES_ROOT\.jpe\ShellEx]
[HKEY_CLASSES_ROOT\.jpe\ShellEx\{BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}]
@="{7376D660-C583-11d0-A3A5-00C04FD706EC}"
[HKEY_CLASSES_ROOT\.jpeg]
@="jpegfile"
"Content Type"="image/jpeg"
[HKEY_CLASSES_ROOT\.jpeg\ShellEx]
[HKEY_CLASSES_ROOT\.jpeg\ShellEx\{BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}]
@="{7376D660-C583-11d0-A3A5-00C04FD706EC}"
[HKEY_CLASSES_ROOT\.jpg]
@="jpegfile"
"Content Type"="image/jpeg"
[HKEY_CLASSES_ROOT\.jpg\ShellEx]
[HKEY_CLASSES_ROOT\.jpg\ShellEx\{BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}]
@="{7376D660-C583-11d0-A3A5-00C04FD706EC}"
[HKEY_CLASSES_ROOT\jpegfile]
@="JPEG Image"
[HKEY_CLASSES_ROOT\jpegfile\CLSID]
@="{25336920-03F9-11cf-8FD0-00AA00686F13}"
[HKEY_CLASSES_ROOT\jpegfile\shell]
[HKEY_CLASSES_ROOT\jpegfile\shell\open]
[HKEY_CLASSES_ROOT\jpegfile\shell\open\command]
@="\"C:\\PROGRA~1\\INTERN~1\\iexplore.exe\" -nohome"
[HKEY_CLASSES_ROOT\jpegfile\shell\open\ddeexec]
@="\"file:%1\",,-1,,,,,"
[HKEY_CLASSES_ROOT\jpegfile\shell\open\ddeexec\Application]
@="IExplore"
[HKEY_CLASSES_ROOT\jpegfile\shell\open\ddeexec\Topic]
@="WWW_OpenURL"
[HKEY_CLASSES_ROOT\jpegfile\DefaultIcon]
@="C:\\PROGRA~1\\INTERN~1\\iexplore.exe,8"
Afterwards, reboot, and see whether this fixes the problem.
Good luck,