1. Check Microsoft.SharePoint.dll - WSS version (C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\ISAPI

2. Check Project version in the GAC ( type assembly into the start RUN) – check for Microsoft Project Server and Windows SharePoint Services File Version
Microsoft Project Server - Product Version -
Windows SharePointŸ Services - Product Version

 

3. Verify the following registry key : HKLM\Software\Microsoft\Office Server\12.0\BuildVersion

 

4. Connect to the SQL server Management Studio

 

Compare against the following table

 

Project and Project Server 2007 Hotfix Versions

 

Number Release Server KB Client KB
4518.1016 RTM N/A N/A
6061.5000 RTM HF1 N/A 935557
6018.5000 RTM HF2 936134 N/A
6019.5000 RTM HF3 N/A 936517
6020.5000 RTM HF4 936876 N/A
6023.5000 RTM HF5 937908 937907
6024.5000 RTM HF6 N/A 938189
6026.5000 RTM HF7 938891 938889
6027.5000 RTM HF8 N/A 939182
6028.5000 RTM HF9 939594 939595
6218.1000 SP1 936984 937154
6301.5000 SP1 HF1 (Rollup) 941426 941657
6304.5000 SP1 HF2 N/A 949398
6307.5000 SP1 HF3 N/A 950284
6308.5000 SP1 HF4 N/A 950480
6309.5000 SP1 HF5 950816 N/A
6310.5000 SP1 HF6 N/A 951166
6312.5000 SP1 HF7 951169 N/A
6313.5000 SP1 HF8 952000 952067
6314.5000 SP1 HF9 952289 952293
6316.5000 SP1 HF10 953136 N/A
6317.5000 SP1 HF11 953478 953476
6318.5000 Infrastructure Update 951297 951547
6327.5000 CU1 - August 2008 956061 956060
6331.5000 CU2 - October 2008 957696 958138
6334.5000 CU3 - December 2008 960313 959643
6341.5002 CU4 - February 2009 968271 966308
6422.1000 SP2 953334 953326
6504.5000 CU5 - April 2009 968860 969409
6510.5003 CU6 - June 2009 971502 971501
6514.5000 CU7 - August 2009 973937 973930
6520.5000 CU8 - October 2009 974990 975923
6524.5000 CU9 - December 2009 977028 977266
6529.5000 CU 10 - February 2009 978397 980209

WSS KB Client Number
SP2 953338 6423.1000
CU5 - April 2009 968857 6503.1000
CU6 - June 2009 970946 6510.5000
CU7 - August 2009 973410 6513.5000
CU8 - October 2009 975002 6520.5000
CU9 - December 2009 977022 6524.5000
CU 10 - February 2009 978389 6529.5000