WORKING STEP 1: (Windows 7 Users)
1. After installation, use this patch for TecDOC 01.2010
2. Copy "stdocxx.tmp" and "tof.dsn" to "\TECDOC_CD\4_2010\pb\" and overwrite.
3. From Desktop change the compatibility for your TecDOC shortcut to Windows XP SP2 or Windows XP SP3
4. Make sure you have two files "SftTree_IX86_U_50.ocx" and "SftTree_IX86_U_65.ocx" installed to "\TECDOC_CD\4_2010\" folder.
5. Enjoy All
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OR
WORKING STEP 2:
For windows 7 x64 users: after tecdoc installation:
1. Restart system in safe mode
2. Go to start, in search field type cmd
3. In command prompt window type commands:
regsvr32 c:\Windows\System32\SftTree_IX86_U_50.ocx
regsvr32 c:\Windows\System32\SftTree_IX86_U_65.ocx
else if you can't register these files, just copy/paste to windows\system32\ directory in normal windows mode...
4. Go to x:\TECDOC_CD\4_2010\pb\ and copy in a safe place tof.dsn file
5. Apply the patch
6. Replace the tof.dsn file with the original one (you saved on point 4.)
7. Restart system in normal mode and enjoy!
TESTED on Win7 x64 Ultimate
Backup files: SftTree_IX86_U_50.ocx, SftTree_IX86_U_65.ocx, tof.dsn and stdocxx.tmp are in the crack archive
NOTE: If you have problems with photos from TecDOC, try to install Adobe Acrobat Reader v9.3.1 Pro Extended.
Adobe Acrobat Reader freeware have some problems in TecDOC, because appear a blank window with "?" sign and "Ok" button
everytime you watch on photos from TecDOC program. I use all Adobe freeware version from 8 to 9 and I solved this problem with
Adobe Acrobat v9.0 Pro Extended

Search on Google for "ADOBE.ACROBAT.V9.0.PRO.EXTENDED-EDGEISO"