ProfiCAD Components

File Description Location
ProfiCAD.exe The main diagram editor program root directory
common.dll Dynamic library required for program operation program root directory
key.dat Your license key file (created after purchase and activation) program root directory
english.ini
espanol.ini
deutsch.ini
... etc. 		Language files containing text strings used in the program program root directory\lang
several files with .ppd and .picd suffixes The symbol library -- each file contains one component "Documents"\proficad library
files with .lin extension Line style definitions "Documents"\proficad library\_LIN
files with .ptb extension Title block definitions "Documents"\proficad library\_TB
several files with .sxe extension Sample diagrams "Documents"\samples
charmap.txt A list of special characters (Greek, math, technical, etc.) for easy insertion into text C:\Documents and Settings\your_name\Application Data\ProfiCAD
favs.txt * Your list of favorite diagram symbols c:\Users\your-name\AppData\Roaming\ProfiCAD\
ProfiCAD.wsp * Remembers which documents were open when you last closed the program C:\Documents and Settings\your_name\Application Data\ProfiCAD
updater.exe Handles both manual and automatic program updates program root directory\updater
settings.ini Configuration file for the updater program root directory\updater
english.xml, slovensky.xml etc. Language files for the updater program root directory\updater/lng

* These files aren't installed -- they're created by the program during use.

Program Relocation

To move ProfiCAD to a different directory or a new computer, simply copy the files listed above. No reinstallation is needed. You can also run ProfiCAD directly from an external hard drive or a USB flash drive.

Firewall settings

URL for updates: http://upd.proficad.com
URL for activation: http://www.proficad.cz

Activation without internet access

For offline activation, follow the instructions on this page: offline activation.

Multi-license activation on multiple computers

Besides the standard activation via Help - Activate, you can activate additional computers by copying the key.dat file from an already-activated computer. Place the file in the ProfiCAD installation directory (usually C:\Program Files (x86)\ProfiCAD).

Troubleshooting Program Crashes

If ProfiCAD keeps closing unexpectedly, try these steps:

  1. Update the program: Run the update via Help - Update.
  2. Check your antivirus: Third-party antivirus software can cause issues. If you're using one, try temporarily uninstalling it.
  3. Update Windows: Press Win + I, go to the Windows Update tab, and click Check for updates -- even if it says everything is up to date.
  4. Identify the problematic drawing: Does the crash happen with a specific drawing, or with all of them? Does it also crash with a brand-new drawing?

If the problem persists, please email the drawing to ProfiCAD support and include:

  1. Your Windows version
  2. Your ProfiCAD version
  3. Exact steps to reproduce the crash

How to set ProfiCAD as "DPI-unaware" (disable DPI scaling)

If text or icons in ProfiCAD appear too small or blurry, you can adjust the Windows DPI settings:

  1. Close ProfiCAD.
  2. Right-click the file ProfiCAD.exe (for example in C:\Program Files (x86)\ProfiCAD) and choose Properties.
  3. Open the Compatibility tab.
  4. Click Change high DPI settings.
  5. At the bottom of the window, uncheck the option:
    "Override high DPI scaling behavior. Scaling performed by:"
  6. Confirm with OK then Apply.

This disables the DPI override, letting Windows handle the scaling (GDI scaling). Text and icons will appear at the correct size.

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