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Most of the available Windows CE devices are Pocket PC’s and therefore most of the available Windows CE software is written for Pocket PC’s.
The main difference of Windows CE Pocket PC’s and Handheld PC’s is the used GUI (Graphical User Interface).
Handheld PC’s (HPC’s) uses a desktop like GUI with Program Icons and a start menu at the bottom like Windows 95 - XP.
Pocket PC’s (PPC’s) have a “Today” screen instead and the Start menu at the top.
Because of the GUI differences there exist also differences in the available system DLL’s. The main reason of the software incompatibility are the lack of some PPC- specific DLL’s in the HPC OS.
Almost all Pocket PC applications uses the aygshell.dll and almost all game-, emulator and video applications uses the Game API- DLL gx.dll.
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Windows CE OS: |
GX.dll from: |
Aygshell.dll from: |
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Windows CE 1.x (1.0 - 1,1) |
Not available |
Not available |
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Windows CE 2.x (2.0 - 2.12) |
Not available |
Not available |
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Handheld PC / HPC (based on Windows CE 2.11 and 2.12) |
Not available |
Not available |
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Windows CE 3.0 |
Dummy DLL |
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Pocket PC 2000 (based on CE 3.0) |
Microsoft |
Microsoft |
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Handheld PC 2000 / HPC 2000 (based on CE 3.0) |
Dummy DLL |
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Pocket PC 2002 (based on CE 3.0) |
Microsoft |
Microsoft |
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Windows CE .NET 4.0 and 4.1 Core |
Dummy DLL |
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Windows CE .NET 4.0 and 4.1 Pro and Pro Plus |
Dummy DLL |
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Windows CE .NET 4.2 Core (Installed on many GPS PNA’s) |
Dummy DLL |
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Windows CE .NET 4.2 Pro and Pro Plus |
Dummy DLL |
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Windows Mobile 2003 (based on CE.NET 4.2) |
Microsoft |
Microsoft |
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Windows Mobile 2003SE (based on CE.NET 4.21) |
Microsoft |
Microsoft |
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Windows CE 5.0 Core (Installed on many GPS PNA’s) |
Dummy DLL |
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Windows CE 5.0 Pro and Pro Plus |
Microsoft |
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Windows Mobile 5.0 (based on CE 5.0) |
Microsoft |
Microsoft |
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Windows Mobile 6.0 - 6.2 (based on CE 5.2) |
Microsoft |
Microsoft |
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Windows Mobile 6.5 (based on CE 5.2) |
Microsoft |
Microsoft |
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Windows CE 6.0 Core |
Dummy DLL |
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Windows CE 6.0 Pro and Pro Plus |
Microsoft |
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Windows Phone 7 (based on Windows CE 6.0) |
No available |
Not available |
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Windows Embedded Compact 7 Core |
Dummy DLL |
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Windows Embedded Compact 7 Pro and Pro Plus |
Microsoft |
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Table: Availability of some PPC- DLL’s
Microsoft: The GX.DLL v1.2 is available from Microsoft (on most PPC’s already installed)
GAPI for HPC’s: Available from WinCESoft (GAPI for HPC’s)
Dummy DLL: Available from one of the dummy DLL packages
If your desired Pocket PC- application doesn’t run on your Handheld PC, you can verify with the tool Executability Check (ExecutabilityCheck.zip) which DLL’s and functions are missing on your HPC and copy these missing DLL’s into the Windows or applications- directory of the PPC- application.
If the application needs also a gx.dll you should verify if this DLL does also exist in the applications directory of the PPC- application and remove it. After deletion the HPC- version in the Windows directory is used instead.
